The Aviation DataBase: Service Information: Cobham
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Continued Airworthiness Instructions
NameRevisionLangSubjectDate
A en Flexcomm II01/18/2000
A en VCS-40C System05/07/2002
A en P-2000 Systems12/19/2003
A en Flexcomm I11/24/1998
Drawings
NameRevisionLangSubjectDate
AJ en Antenna, ADF Outline03/20/2009
AK en Antenna, ADF Outline08/15/2011
Equipment Manuals
NameRevisionLangSubjectDate
C en Microphone Amplifier 263-[ ]10/23/2013
1.12 en Area Microphone Amplifier 266-[ ]10/06/2011
1.00 en Area Microphone Preamplifier 265-00506/03/2013
2.30 en Audio Selector Panel 343-[ ]12/04/2014
1.30 en Audio Selector Panel 344-[ ]10/25/2013
1.40 en Audio Selector Panel 380-[ ]12/03/2010
1.05 en Audio Control Amplifier 438-[ ]01/17/2011
L en Audio Selector Panel 555-[ ]06/10/2004
1.20 en Aural Warning Generator 611-[ ]08/20/2014
1.20 en Aural Warning Generator 611-[ ]08/12/2014
1.10 en Digital Audio Control Amplifier 700-[ ]10/26/2010
1.20 en Switch Panel 803-009, 803-012, 803-013 and 803-01411/30/2011
1.20 en Switch Panel 804-[ ]08/17/2011
1.21 en Switch Panel 805-[ ]12/06/2011
1.13 en Switch Panel 808-[ ]01/07/2011
1.13 en Switch Panel 809-[ ]01/07/2011
1.10 en Cabin Briefer 93012/12/2008
Information Bulletins
NameRevisionLangSubjectDate
A en 415 to 438 Conversion07/10/2014
A en 437 to 438 Conversion07/10/2014
en Dual Audio Alerting System04/11/2002
en Four/Eight Place Intercom - Headphone Impedance & Exterior Labelling03/06/2013
A en Notice of Invalid Configuration02/14/2014
en TAC/COM Control Heads05/11/2000
A en Part Number Cross Reference for Obsolete Materials11/08/2016
E en Part Number Cross Reference for Obsolete Materials12/20/2017
en Weight Identification09/07/2017
B en Label Application11/09/2015
en Alternate -13 and -17 Subassemblies (MOD 2)05/11/2016
A en SWID 26 Incompatibility W/C-5000 Mode 1 Operation08/18/2014
A en HW/SW Update08/20/2015
en TAC/COM Control Heads12/17/2001
en Left and Right User MIC Bias Circuits Incompatible with PAX Bias Circuit11/18/2008
en Universal Interface Amplifier12/12/2005
en Syn-Tech XTR Interface06/08/1995
Installation & Operation Manual Supplements
NameRevisionLangSubjectDate
2.00 en CH400-4J, -612 'A' Inerface (AM Comm Series)09/07/2012
2.00 en CH400-3B, -4E 'C' Interface (FliteFone 40)09/10/2012
2.00 en CH400-17 'D, D1' Interface (Astro/XTL-5000)09/11/2012
2.00 en CH400-81 'F' Interface (Flexcomm)09/14/2012
2.00 en CH400-14 "H, J' Interface (NTX Series)09/14/2012
2.00 en CH400-10, 101, 4A, 4D 'K, M' Interface (Midland Syn-Tech)09/17/2012
2.00 en CH400-15 'L' Interface (Motorola Spectra)09/18/2012
2.00 en CH400-4A, 4H, 4I, 4M, 9, 91, NT150 'N, T, V' Interface (NT Series)09/18/2012
2.00 en CH400-4B, 4F, 4G, 4M, 6, 61, 611, 7, 7B, 7C, 7C1, 7C2 'P, Q, R, U' Inerface (RT7200/9600)09/19/2012
2.00 en TH250C-006 Custom Tac/Com Controller09/21/2012
2.00 en TH450C-002 Custom Tac/Com Controller09/25/2012
2.00 en CH400-12 'Y' Interface (Serial Card)09/26/2012
2.00 en CH410-3 'Z' Interface (Tac/Com Slave)09/26/2012
2.00 en AA31-109 ICS Mode Controller10/23/2012
2.00 en AA31-901 ICS Mode Controller10/24/2012
2.00 en AA35-000 Audio Mixer Panel08/27/2012
2.00 en AA35-100 Audio Mixer Panel08/27/2012
2.00 en AA35-202 Audio Mixer Panel08/28/2012
2.00 en AA35-400 Audio Mixer Panel08/28/2012
2.00 en AA37-003 Dual Channel Alerting System10/24/2012
1.00 en NPX138-050 Panel Mount VHF FM Transceiver06/29/2010
1.00 en N301A-101 Audio Controller02/23/2012
1.00 en N301A-100 Audio Controller02/23/2012
1.01 en N301A-200 Audio Controller05/17/2012
1.01 en N301A-300 Audio Controller05/17/2012
1.22 en N301A-076 Audio Controller04/30/2012
1.22 en N301A-075 Audio Controller04/30/2012
2.03 en N301A-035 Audio Controller04/30/2012
1.00 en N301A-020 Audio Controller02/19/2001
AA en N335-050 Audio Controller05/31/2017
AA en N335-056 Audio Controller05/31/2017
AA en N335-069 Audio Controller05/31/2017
AA en N335-070 Audio Controller05/31/2017
AA en N335-072 Audio Controller05/31/2017
AA en N335-073 Audio Controller05/31/2017
AA en N335 Series Audio Controller05/31/2017
2.00 en AA38-506 Four Place Intercom11/29/2012
2.00 en AA38-602 Hi-Z Eight Place Intercom11/29/2012
1.00 en 300A-002 Audio Panel09/29/2010
1.01 en ACP51-102 DACS Audio Control Panel07/16/2010
1.20 en 802-008 Switch Panel07/28/2010
1.20 en 802-007 Switch Panel06/28/2010
1.20 en 802-005 Switch Panel06/25/2010
1.20 en 802-003 Switch Panel07/28/2010
1.30 en 802-006 Switch Panel06/28/2010
1.40 en 802-002 Switch Panel07/28/2010
1.12 en 806-002, 807-002 Audo Selector Panel10/15/2008
1.00 en 806-005, 807-005 Audo Selector Panel10/15/2014
1.10 en 806-001, 801-001 Audo Selector Panel12/13/2005
1.20 en 806-004, 807-004 Audo Selector Panel12/15/2005
1.00 en 3110 Audio Control Panel09/16/2005
Installation & Operation Manuals
NameRevisionLangSubjectDate
AA en DevCS, Device Configuration Software05/24/2016
Amend 3 en 250 Passenger Spearker Amplifier08/09/2011
Amend 2 en 251 Passenger Spearker Amplifier08/09/2011
1.01 en 630A-[ ] ASPU01/22/2014
AA en 630A-[ ] ASPU11/23/2016
1.03 en Audio Management Unit (AMU) 4420-[ ]09/03/2010
1.04 en Audio Management Unit (AMU) 4420-[ ]07/15/2011
AA en Audio Management Unit (AMU) 4420-[ ]01/31/2017
AA en Audio Control Panel (ACP) 552001/31/2017
1.01 en Single Channel Audio Controller09/12/2014
5.00 en TAC/COM Series Control Head04/26/2012
5.00 en AA80 InterVOX Intercom Systems04/30/2012
2.00 en AA82 InterMusic Stereo Intercom System04/16/2012
5.00 en AA83-001 InterMusic Stereo Intercom System (SN 2938 and below)04/17/2012
5.00 en AA83-001 InterMusic Stereo Intercom System (SN 2939 and later)04/18/2012
5.00 en AA83-100 InterMusic Stereo Intercom System03/15/2012
5.00 en AA31 ICS Mode Controller04/14/2012
5.00 en LD12-001 Lamp Dimmer05/03/2012
5.00 en RS16 Series Remote Switch05/04/2012
2.00 en CC450-0V2 Communications Controller05/05/2012
5.00 en AA24/AA25 Series Single User Audio Controller04/14/2012
5.00 en AMS42/AMS44 Series Dual Channel Audio Controllers05/29/2012
4.11 en AA20-431 Cabin PA System02/17/2011
5.00 en AA23 Speaker Amplifier05/05/2012
2.00 en AA35-001 Audio Mixer Panel05/08/2012
5.00 en NTX VHF-FM Series Remote Mount Transceivers05/09/2012
2.00 en RA Series Remote Attenuator03/09/2012
5.00 en VR28-013 Voltage Regulator (Up to SN 1220)05/12/2012
5.00 en VR28-013 DC/DC Power Converter (SN 1221 and later)05/12/2012
Iss 4.02 en AA34 Series Universal Radio Interface05/21/2010
5.00 en AA37 Series Alerting System04/16/2012
5.00 en UT12-000 Universal Tone Encoder/Decoder05/15/2012
5.00 en AA36-ECF Tie Line Adapter04/15/2012
2.00 en AA39 Series Headset Adapters05/17/2012
2.00 en AA38-5xx, -6xx, -7xx and -8xx Series Local ICS Loop05/26/2012
Iss 4.02 en PTA12-000 POTS Telephone Adapter04/13/2010
Iss 4.03 en PTA12-100 POTS Telephone Adapter with Display11/24/2014
Iss 5.00 en AA36-100 Digital ICS Tie Line Adapter04/15/2012
2.00 en AMS43 Single Channel Audio Controller04/22/2012
2.00 en N300-001 and N300-002 Audio Controller05/26/2012
5.00 en NTX403 Series Remote Mount UHF-FM Transceiver06/06/2012
2.00 en N300-003 and N300-004 Audio Controller06/07/2012
4.02 en NPX136D Series VHF P25 Panel Mount Transciever03/24/2010
2.00 en AA12S Series Compact Audio Controller04/14/2012
5.00 en NTA01-001 Motorola Series Radio Adapter06/12/2012
2.00 en MB01-001 Matching Box06/12/2012
AA en ACP53-001 DACS Audio Control Panel10/03/2017
Iss 1.03 en ACP53-001 DACS Audio Control Panel07/16/2010
1.11 en AMU50-001 Audio Management Unit05/22/2012
1.12 en AMU50-001 Audio Management Unit03/05/2013
1.13 en AMU50-001 Audio Management Unit09/24/2014
1.02 en RM01-001 Remote Memory07/14/2010
AA en RM01-001 Remote Memory10/04/2017
Iss 1.11 en PIA01-001 Passenger Intercom Amplifier09/24/2014
Iss 1.01 en 300A-000 Audio Panel10/26/2010
Iss 1.04 en ACP51-100 DACS Audio Control Panel04/15/2014
Iss 1.04 en ACP54-001 DACS Audio Control Panel04/15/2014
Iss 1.01 en ERU50-001 Emergency Relay Unit11/15/2012
2.00 en LD12-002 LED Dimmer06/19/2012
3.00 en AA95-766 Single Channel Audio Controller06/20/2012
3.00 en 210 Voice Activated Switch04/26/2012
Iss 4.12 en 240 Passenger Speaker Amplifier05/26/2010
4.20 en 245 Speaker Amplifier08/29/2013
Iss 2.10 en 247 Audio Mixing Amplifier03/06/2012
4.10 en 270 Universal Interface Amplifier12/12/2006
Iss 2.00 en 437 Audio Control Amplifier06/04/2008
Iss 4.12 en 802-009 Switch Panel06/24/2010
Iss 4.01 en 806 and 807 Audio Selector Panels07/24/2008
4.00 en 3110 Audio Control Panel11/21/2006
Installation Bulletins
NameRevisionLangSubjectDate
1 en Programming and Interface Between the Analog Interface Unit (AIU-1) and a S-Tec 65 Autopilot02/17/2004
2 en The Wiring Changes for Proper Integration of the Flight Director Command Bar Presentation to the Chelton EFIS and AIU from the Sperry SPZ-200/500 Flight Director Computer. Scaling Factors for the AIU Flight Director Horizontal and Vertical Detectors are Increased07/18/2005
1 en Correction to the AIU Configuration and Wiring Diagram Between the AIU and the Century 2000 Autopilot08/01/2005
en Programming and Interface Between the Analog Interface Unit (AIU-1) and a Chelton AP-3C Autopilot Operating at 5KHz AC Datum03/31/2005
en Programming and Interface Between the Analog Interface Unit (AIU-1) and a Bendix H14 Autopilot Operating at 400Hz AC Datum08/01/2005
en Programming and Interface Between the Analog Interface Unit (AIU-1) and a Bendix/King KFC-275 Autopilot Operating DC Datum08/01/2005
en Programming and Interface Between the Analog Interface Unit (AIU-1) and a Bendix/King KFC-250 Autopilot with a KA-118 Adaptor Operating at 400Hz AC Datum08/01/2005
en Addition of Transmit Interlock Capability to the VC 401B Series III Communications Transceiver10/16/1987
en Crimping Tools for Bendix/King Series III CNI02/28/1988
en Metal Impregnated AT 434A ADF Antenna Gasket08/08/1988
en All Audio Controllers (AA90/95/AMS40/41/42/43/44...)03/03/1990
Installation Manual Supplements
NameRevisionLangSubjectDate
B en C-500 Communications Managemeng Controller07/17/1998
Installation Manuals
NameRevisionLangSubjectDate
C en Flexcomm I02/19/2009
B en Flexcomm I Addendum07/21/1999
F en DMS 44A05/19/2010
G en DMS 44A12/07/2011
J en VNS 41A Navigation System04/17/2009
K en VCS-40A VHF Communication System02/27/2007
F en DFS 43A Automatic Direction Finder System07/10/2008
H en Flexcomm II (P-25 Capable)12/20/2010
J en Flexcomm II (P-25 Capable)07/25/2012
K en Flexcomm II (P-25 Capable)02/13/2013
N en Flexcomm II (P-25 Capable)04/29/2016
P en Flexcomm II (P-25 Capable)08/18/2017
J en CDM-451 Distance Measuring System03/24/2009
K en CDM-451 Distance Measuring System02/13/2013
H en VCS-40C VHF Communication System02/27/2007
H en FliteLine CD07/29/2010
J en FliteLine CD04/13/2012
K en FliteLine CD02/20/2013
M en FliteLine CD02/20/2013
N en FliteLine CD04/19/2017
G en CVC-151 VHF Communication System09/10/2009
H en CVC-151 VHF Communication System02/26/2013
J en CVC-151 VHF Communication System02/14/2017
L en CVC-151 VHF Communication System10/10/2017
G en CVN-251 VHF Navigation System09/21/2009
H en CVN-251 VHF Navigation System03/06/2013
K en CVN-251 VHF Navigation System02/16/2017
L en CVN-251 VHF Navigation System06/05/2017
F en P-2000/C-2000/RT-200002/04/2008
H en Flexcomm II C-5000 (Non-Digital)12/07/2012
J en Flexcomm II C-5000 (Non-Digital)09/01/2013
K en Flexcomm II C-5000 (Non-Digital)04/29/2016
E en Flitefone VI
A en Aural Warning Generator 600 and 600-00107/30/2014
A en Aural Warning Tone Generator 60307/30/2014
1.10 en Switch Panel 803-008 and 803-01711/30/2011
AA en Switch Panel 803-008 and 803-01702/08/2018
Maintenance Manual Supplements
NameRevisionLangSubjectDate
2.00 en CH400-17 'D, D1' Interface (Astro/XTL-5000)09/11/2012
Maintenance Manuals
NameRevisionLangSubjectDate
Iss AA en PTA12-300 POTS Telephone Adapter with NVIS Display07/27/2017
Miscellaneous Guides
NameRevisionLangSubjectDate
D en Product Guide: Wulfsberg11/30/2006
A en Quick Reference Guide: C-5000 Digital P-2503/13/2014
Operator's Manual Supplements
NameRevisionLangSubjectDate
A en C-5000 Communication Management Controller01/28/2000
Operator's Manuals
NameRevisionLangSubjectDate
E en Flitefone VI
B en C-962A Narrow Band Control Unit08/09/2000
A en C-1000 Narrow Band Control Head
E en C-5000 Communication Management Controller07/29/2010
F en C-5000 Communication Management Controller11/21/2013
C en CDM-45109/21/2009
D en Flexcomm 2000 (P-2000/C-2000/RT-2000)09/30/2007
C en C-5000 Communication Management Controller02/05/2001
en C-1000/S
1.10 en Digital Audio Control System (DACS)03/08/2012
Pilot's Guides
NameRevisionLangSubjectDate
B en Series III Avionics
B en C-5000 Communication Management Controller06/19/2009
C en C-5000 Communication Management Controller11/21/2013
F en FliteLine Avionics System02/24/2010
A en CDF-992 Direction Finder, Control Display, System-709/20/2006
Service Bulletins
NameRevisionLangSubjectDate
A en RT-138 GD Receiver to Improve Spurious Performance09/10/1998
en TRI-BAND ELT Antenna 21-41: Prevention of Static Transmission to Connected ELT04/18/2011
en 804-001 to 804-016 Conversion02/27/2017
A en Inspect C56 for Inter-Board Cable Clearance01/25/2018
A en 251-XXX Wire Staking05/09/2013
A en Bonding Improvement01/21/2015
3 en Emergency Power Supply (EPS) - P/N 301-3100 Amdt. A become P/N 301-3100 Amdt.B07/30/2015
A en Reduce Nuisance Headphone Protection Circuit Trips10/28/2014
A en Normal/Backup Switch12/05/2014
B en Facial Seal D-Sub Replacement02/20/2013
en Knob Replacement03/30/2012
A en TSO Label, Backlighting Voltage Specification Inspection12/14/2015
en Replacement of Obsolete Voice Recorder V-Chip10/28/2016
A en Cats Eye Retension Enhancement02/12/2015
B en ECO 418-51-00108/03/2016
A en 630A08/02/2013
A en Application of MOD3, A03/17/2016
B en Application of MOD3, A09/13/2017
en Stop the Playback of Autopilot Disconnect02/24/2017
en P1 Connector and Pin Identification09/02/2016
A en Replacement of U4, MOD D05/18/2013
A en MOD 1007/09/2014
A en MOD 1107/09/2014
A en MOD 1207/09/2014
A en AA20-43110/04/2012
en Corrected Alert 3 Triggered (MOD 4)11/22/2013
en Dual Audio Alerting System - Incorrect Power Output Levels07/29/1997
en Mod 2, Add Coupling Capacitors to Inputs06/12/2003
A en ACP51-10004/04/2014
B en ACP 5402/22/2012
B en ACP5402/10/2012
en VOX\ICS Tie Line Subassembly03/09/1995
A en Replace Diode IN4148 with Schottky Diode07/08/2003
A en Improve Station Passage Delay11/10/2003
A en Part Number Correction12/16/2014
B en Replacement Obsolete LED 47-83-00103/17/2015
C en Upgrade for Narrowband Operation08/09/2000
A en Makes Tone Output More Uniform01/13/2000
A en Narrow Band Upgrade11/22/2000
A en Improve CTCSS & DCS Receives Tone Operation03/18/1998
en Tone Board Changes to Improve DCS Operations08/31/1997
en Modification of C-5000 Control Head for Revision 1.07 Software04/30/1991
A en CTCSS Tone Software Upgrade11/23/1998
en Increase Range08/31/1997
en Modification of C-5000 Control Head for Revision 1.08 Software07/01/1991
A en Improves CTCSS Tone Operation11/28/1998
en Improve DCS Tone Operations During Transmit08/31/1997
A en Forces RT System into Direct Mode12/22/1998
C en Provides Short Circuit Protection03/22/1999
B en Changes Display Trans. to Higher Power03/30/1999
A en Improves Vibration Tolerance04/07/1999
A en Gray Polarized Filter10/25/1999
B en Version 15 Software01/28/2000
A en Fixes Unsquelch for Main Channel Receiver05/16/2002
B en Conversion to External DES Encryption06/11/2003
A en EL Panel Drive Circuitry08/30/2012
A en Replacement of Q5, 6, 7 & CR2 on Display Board11/20/2012
A en Correct Headset Audio Frequency Roll-Off05/01/2013
A en Inspection of C24 Clearance to Surface Mounted Components on Power Supply Board03/19/2014
A en Replacement of Obsolete Q9 Power Supply Transistor05/09/2014
B en C-5000P Upgrade, SWID 1206/22/2015
en Short Circuit Prevention10/18/2017
en Correction of Over-Voltage Cut Off10/20/2017
en Jackscrew Height Reduction on System Interface Board10/31/2017
en Increase Activation Force for Transferring Frequency11/08/1988
A en Defines MOD 5 and above as 8.33 KHz Capable02/01/2001
B en Replace Obsolete LCD Display Module07/06/2006
B en Replace Obsolete LCD Display Module07/06/2006
en Set Screw/Half Switch07/31/1999
en Re-Install Set Screw07/31/1999
B en Replace Obsolete LCD Display Module07/06/2006
A en Adding Kapton Tape to Display Module Assembly04/19/2012
B en Replace Obsolete LCD Display Module07/06/2006
D en SWID 11 & HW Mod 710/16/2014
C en HWMOD 7, SWID 1206/08/2016
en Transmitter Power Enhancement01/06/2017
en Tac/Com Interface Board - Intermittent Operation03/31/1998
en Tac/Com XTR I/F07/14/1994
A en SMOD-09 Installation04/20/2012
A en SMOD-08 Installation04/20/2012
A en SMOD-07 Installation04/20/2012
A en Phase I L.O. Stability Improvement04/10/2013
A en Connector J400/J600 Insulation03/16/2012
en Transmitter Frequency Modulation Reduction Enhancement01/07/2017
A en EMI Gasket Installation05/22/2012
B en EMI Gasket Installation10/10/2017
en Installation of HW MOD 4, Stabilization of 6.5V Switching Regulator05/19/2017
A en Use of Capacitors with Higher Voltage09/06/2002
B en Use of Capacitor for Improved Stability10/07/2003
A en Switch Transformer Drive Circuitry06/18/2003
A en Replacement of Temperature Sensitive C47, C48 on Analog Board11/20/2012
A en T7 Circuit Temperature Enhancement05/21/2013
A en Replacement of Temperature Sensitive C4 and C5 on Analog Board03/24/2014
A en Power Supply Reliability Enhancement04/20/2016
B en Power Supply Reliability Enhancement01/02/2018
en I/O Board Component Height Verification02/16/2017
B en Replaces Tantalum Cap with Aluminum Cap05/18/2001
B en Improve Sensitivity at High Temps02/08/2006
C en Improve Sensitivity at High Temps08/16/2016
B en Display Range Error07/11/2006
D en Improves Station Over Flight07/11/2006
E en Improves Station Over Flight06/30/2016
B en Add Gimmick Capacitor to the VCO Board05/30/2001
C en Add Gimmick Capacitor to the VCO Board12/18/2015
C en Replacement of Philips 87C528 CPU04/21/2006
D en Replacement of Philips 87C528 CPU01/14/2017
B en Mod. 11 Software ID -2004/17/2000
B en Reduce Frequency Pulling in Frequency Synthesizer03/17/2006
A en Replace Capacitor C2 to Allow Use of 2 Lead Device09/19/2014
B en Power Supply Reliability Enhancement04/20/2016
A en ECR AX250-3199C08/03/2012
B en ECR AX250-3199C04/11/2017
A en Crimp Terminal Recall09/01/2010
A en Learn Mode Enhancement (SWID 06)02/25/2013
A en Prevent Processor Lockup (SWID 08)05/13/2013
A en Removing Vote Scan Capability from Motorola XTS-5000 Tanapa Radios01/14/2015
A en (MOD 04) Narrowband Configuration per FCC Mandate02/13/2013
A en Replacement of Obsolete L.E.D.07/15/2014
A en Software Update 4.0F, GPS/WAAS03/26/2003
C en Software Update 4.0H08/19/2003
A en Software Update 4.0J08/19/2003
A en Software Application for FCC #008/22/2003
B en Software Application 4.1A11/18/2003
B en GPS Replacement11/13/2003
A en Navigation Database Error11/18/2003
A en Departure and Missed Approach Procedure11/18/2003
A en Software Application Version 5.0A06/23/2004
A en KN-53 Glideslope Integration08/30/2004
A en Crossbow AHRS Replacement10/25/2004
B en AIU-1 Replacement01/25/2005
C en Mandatory Software Application Version 5.0B01/16/2006
E en Mandatory Software Application Version 5.0B04/17/2006
B en Mandatory Shadin ADC-2000 Replacement06/13/2005
A en IDU Limits Digital Gain Modification07/25/2005
A en Garmin GDL-90 ADS-B Interface Provisions11/09/2005
A en Ram Replacement03/21/2006
B en Software Application Version 5.0C11/09/2006
E en Software Application Version 6.0B02/16/2010
A en GPS Replacement07/11/2007
B en Annunciated Switch Replacement11/07/2008
A en Remove Video Ghosting10/18/2012
A en PS2 Switcher Regulation Improvement10/18/2012
A en AvioIP V2.2 SW Installation07/14/2014
en Incorporate MOD 104/20/2017
en Audio Controller06/01/2017
A en MOD 1209/11/2013
en Codeplug for 255 Channels06/23/2017
C en Narrowband Configuration (Mod 22) per FCC Mandate10/20/2016
A en M103 Socket Adapter Replacement09/03/2013
A en Receiver Birdie Fix, 156.8MHz02/13/2014
B en Reduction of Transmitter Harmonics (MOD 23)08/12/2015
en 156 MHz Receiver Birdie Fix (Mod 24)01/13/2017
en Convert NPX138N-300 to NPX138N-3B011/14/2017
en Installation of Tekmos Microcontrollers (HW Mod 26)12/20/2017
en High Output Power not Meeting Spec06/26/2013
en Failing Crystal Oscillators07/30/1997
en MOD 1, TX Power Level/Stability06/18/1998
en MOD 2,TX Relay "Chatters" at 174 MHz06/18/1998
en MOD 6, Low TX Deviation During Low Temperature Operation06/18/1998
en MOD 5, VCO Gain and Loop Filter for Subaudible Tones (MOD 7, NTX138-5 DCS Change)06/26/1998
en MOD 3, Test Set Compatibility Requirements06/18/1998
en MOD 4, DCS Mods, RNOAF Contract Requirements06/18/1998
A en L.E.D. Backlighting Replacement03/18/2016
A en ATP Software Configuration for No Mod Units08/09/2012
A en JetLAN Standoff Replacements, M12 and M2105/14/2014
A en MOD 1010/18/2012
A en Mod 1 - 510/12/2012
A en JetLAN Standoff Replacements, M2105/07/2014
A en MOD 910/12/2012
en Video Signal Clarity MOD 1104/12/2010
en PS2 Jumper Mod 1206/25/2010
A en I.C. U101 or U601 Replacement Procedure12/15/2014
A en Latitude Technology Firmware03/25/2015
en Improve Operation of Control Panel02/02/1999
A en Add Non-Standard CTCSS Tone08/09/2000
en Modification of RT-30 for Installation of Flexcomm DVP Audio Board03/01/1991
B en Adds Non-Standard CTCSS Tones07/22/1999
A en Attenuating Receiver Sensitivity02/15/2000
A en Narrowband Upgrade07/05/2000
en Modification of RT-138F Transceiver for Improved Encryption and DCS Tone Operation07/15/1991
A en Add Non-Standard CTCSS Tone08/09/2000
A en Incorrect MOD Marking08/17/2000
A en Incompatible Versions of the Synthesizer08/17/2000
B en Narrowband Upgrade10/12/2002
en Modification of RT-138F and RT-406F Transceivers for Improved External Modulation02/15/1990
en Modification of RT-406F Transceiver for Improved Encryption and DCS Tone Operation07/15/1991
en Improve Voice Encryption Operation & Add GE Voice Guard Compatibility01/01/1990
A en Improves Stability & Power Flatness01/21/1999
A en Modification of Synth Board to Prevent Shorting10/01/1997
A en Add Non-Standard CTCSS Tone08/09/2000
A en Improves Stability of Preselector10/23/2000
A en Allows Use of 406 PA Board in Repair01/27/1999
A en Single Zone Implementation11/06/2008
en Improve Transceiver Performance11/09/1998
A en Fixes Inoperative DCS Tone Feature01/18/1999
A en Fixes Active Antenna Tuning06/25/1999
en Disable Carrier Detect Operation10/31/1996
B en Q8 Transistor Replacement08/08/2016
A en RT-5000 Spur Fixes01/06/2012
A en ADC Interposer Board on DSP/Logic Board
A en 12.8Mhz Oscillator Noise Reduction12/19/2011
B en Incorporate SWID 2211/09/2012
B en Narrow Band Mandate Installed (MOD 33)04/01/2016
A en RT-5000 Digital, SWID 2401/24/2013
A en RT-5000 Analog, SWID 2501/24/2013
A en J101 LocTite® 222 Application04/09/2013
H en Transmitter Harmonic Reduction Enhancement05/14/2015
A en RT-5000 Digital, SWID 2601/29/2014
G en RT-5000P Upgrade04/21/2016
A en Part Number Label Cage Code Correction05/16/2014
B en UHF Board, C501 Inspection12/16/2014
A en P.A. Shield Modification07/30/2014
A en ITM Power Wire Inspection08/25/2014
A en Q5, SB 2900 Bias Setting04/01/2015
C en Transmitter Oscillation Correction04/13/2016
B en Tanapa Receiving Process, Uncertified05/12/2016
A en A1-P6, E1-E12 Wire Bundle Restraint05/26/2015
A en Wi2Wi 12.8MHz Synthesizer Oscillator Installation Instructions12/15/2015
A en Connector Clip Inspection04/05/2016
B en Incorpate HW MOD 41 ON Motherboard11/23/2016
en AM Receiver Audio Response Enhancement01/28/2017
en Modification of RT9600 Chassis to Accommodate Fastlock Synthesizer Module04/28/1993
en Modification of RT-9600F Transceiver (Audio Board PN300-2100-003) for Improved Encryption and DCS Tone Operation07/15/1991
E en Modify for Narrowband Operation06/22/2007
en Modification of RT-9600F Transceiver (Audio Board PN300-2100-001) for Improved Encryption and DCS Tone Operation07/15/1991
en Change NVIS Lighting to be Compatible with Navy Lighting Levels10/01/1997
A en CSB WSB Series III Power Supply-01 (Replacement of CR14)10/30/2001
B en CSB WSB Series III Power Supply-01 (Replacement of CR14)04/28/2017
en PTT Delay Circuitry Added06/14/2001
en MOD 21, Correcting "-- NO RADIO --" Fault02/20/2003
en Faceplate Text Change10/24/2001
en Replace Obsolete Beryllium Strip MOD 3111/20/2009
en Replace Obsolete Beryllium Strip MOD 401/11/2010
en Latching Problems with Connector Locking Hardware (MOD 1, 20)11/06/2002
en Software Upgrade to Support W4/W504/12/2007
en Radio OK Out Line11/10/2000
en CH400-612 Activates VHF-20 PTT Circuit During Receive Mode (MOD 22)05/09/2005
en Front Panel Switch Interpretation (MOD 25)03/06/2007
en Faceplate does Not Sit Flush (MOD 27)07/18/2007
en CPU Switch Clearance (MOD 26)05/16/2007
en Replace Obsolete Beryllium Strip (MOD 7)05/07/2010
en Faceplate Bubbling (MOD A)02/28/2007
en Too Much Light Around Knob (MOD A)07/02/2008
en True Sidetone Modification (MOD A)11/28/2003
en Replacement of Transformer Insulators (MOD 12)09/26/2003
en Replacement of Transformer Insulators (MOD 12)03/26/2004
en DIR AUD #1 Level Increase (MOD 13)07/26/2004
en DIR AUD #1 Level Increase (MOD 13)08/17/2004
en ICS Noise (MOD 14)02/14/2007
en ICS Bleedthrough (MOD 15)01/25/2007
en MOD 2, Shorted Capacitor/Output Oscillation02/20/2001
en MOD 3, Q101 Emitter to Collector Short05/24/2002
en Changed Screw Length (MOD 4)05/15/2007
en Changed Screw Length (MOD A)07/17/2007
en Interference from Antennas (MOD A)08/13/2008
en Oscillations at Low Volume (MOD 1)02/25/2009
en Oscillations at Low Volume (MOD 1)10/05/2009
en DCS Inoperative03/13/2001
en MOD 9, U510 Insulator05/03/2005
en RX Failure - High Temp (Mod 11)01/06/2006
en (MOD 8), RF Power Level11/30/2004
en Capacitor Dialectric Leakage06/12/2006
en Transmit Characteristics (NTX138 MOD 14, NTX066 MOD 2)03/08/2007
en Rx Failure at Low Temperatures (MOD 15)03/19/2007
en Firmware Update (MOD 17)02/04/2008
en Obsolete Audio Bandpass Filter (NTX066 MOD 5, NTX138 MOD 18, NTX138E MOD 4)06/26/2008
en High Temperature Failure (MOD A)10/27/2008
en Firmware Update (NTX066 MOD 3, NTX138 MOD 19)02/04/2009
en Aux Receive Audio Level too High (NTX066 MOD 7, NTX138 MOD 20)05/12/2009
en Even High Power Across Frequency Band (NTX066-000, -001 MOD 8, NTX066-002 MOD 1)06/10/2009
en Transmit Power Problem (MOD 6)07/14/2009
en Low Power Tx Output Problem (NTX066-000, -001 MOD 9, NTX066-002 MOD 2)07/31/2009
en Added Shield M8 (NTX066-xxx MOD 10, NTX138-XXX MOD 21, NTX138E-xxx MOD 6, NTX403-xxx MOD 7)11/17/2009
en Changed Capacitor Value C320 on Transmitter Subassembly (NTX066-000 MOD 11, NTX066-001 MOD 11, NTX066-002 MOD 3)04/16/2010
en Removed DCS Circuitry (NTX066-000 MOD 12, NTX066-001 MOD 12, NTX066-002 MOD 4, NTX138-003 MOD 1, NTX138-xxx MOD 22, NTX138E-060 MOD 10, NTX403-xxx MOD 5)08/10/2010
en Power Key Line Reset (MOD 3)05/24/2007
en RFI/EMI Emissions (MOD 4)09/11/2007
en Repair Procedure for Unit with Defective Part 32-23-08001/24/2006
en T103 & T104 Impedance Matching (MOD 1)02/08/2007
en Op-Amp Supply Voltage Increase (MOD 1)06/16/2004
en U401 and Associated Circuitry Replaced on MIC/ICS Amplifier Subassembly (SA4) (MOD 9)11/22/2011
en Connector H/W Change (MOD A)12/22/2005
en Annunciator Dimming Threshold Reduced (MOD D)03/16/2006
en Faceplate Quality (MOD A)03/28/2007
en Faceplate Luminance Corrections06/20/2008
en Added Countersink to Emergency Switch Hole (MOD A)02/13/2009
en Connector J101 Locking Hardware Changed to Threaded Studs (MOD A)03/24/2009
en RX Mute Function Added (MOD B)09/03/2009
en RX Mute Function Added (MOD B)09/02/2009
en Op-Amp Supply Voltage Increase (MOD 3 for AA38-501, -502, -503, -504 - MOD 1 for AA38-703)06/16/2004
en Aux Receive Audio Level too High (MOD 2)05/12/2009
en Receiver Sensitivity Increased (MOD 3)07/14/2009
en PCB Amplifier Hardware (MOD A)07/04/2006
en 8 Ohm Output Shorting to Chassis (MOD B)07/24/2008
en Tac/Com Control - Conversion to TH250-7JJ109/24/1997
en Software Upgrade01/09/2007
en Software Changes12/31/1985
en New Software to Improve Mode Operation10/31/1984
en To Reduce Dead Time12/31/1985
en Tone Deviation Failure (MOD 3)02/14/2005
en Eliminate Time-Out on 429 Reset with Loading Data04/30/1984
en Greater Margin for Overvoltage Protection07/31/1984
1 en Prevent Squelch Closing07/31/1986
en Limit Current Spikes02/28/1985
en Reduce Receiver Noise in Transmitter Sidetone Output03/31/1986
en Increase Display Enable Pulse Width03/31/1986
2 en Change Software ROM COM Controller12/19/1989
C en To Verify Performance Parameters01/17/2001
A en Seal Unused Hole12/11/2002
A en Vibration Parameters During Test04/29/2003
A en Switch Transformer Drive Circuitry06/18/2003
A en Replacement of Choke L107/01/2003
1 en See Note in Service Bulletin09/30/1993
en Prevent Random Breaking Squelch04/15/1987
en Reduce Receiver Self-Interference04/15/1987
1 en Reduce Crosstalk Between Transceivers06/20/1988
en Improve Transceiver Performance08/12/1987
en Incorporate Changes to Audio & Transmitter Boards01/11/1988
en Improve Receiver Spurious Response01/11/1988
en Operation Under Low Volt Conditions without Blanking Display03/15/1988
en Prevent Chirp when Transmitter Unkeyed06/20/1988
1 en Replace Filter Board on CPU Module01/02/1991
en Reduce Amount of Broad-Band Noise on Transmitted Carrier01/07/1991
en Reduce Amount of Spurious Reception (Birds)07/31/1992
B en Reduce Amount of COMM to COMM Interference07/06/2006
B en Add Intermedulation Filter Board & Retune07/06/2006
C en To Meet Requirements of TSO Receiver Spurious Response03/31/2004
A en Installation of SWID 0812/12/2013
A en Power Supply Reliability Enhancement04/20/2016
1 en Extend Operating Frequency Range to 136.975MHz05/29/1990
1 en Conversion to Change Outputs02/29/1992
C en Add Intermodulation Filter Board & Retune10/20/2006
A en Defines MOD 22 and above as New Technology01/13/2001
B en Dual Radio Operation with MOD 22 or 2301/15/2001
A en Replace Copper Tape with Conductive Foam03/08/2001
A en Mic Impedance for Use with Non-Carbon Mic Systems04/11/2002
A en Mic Audio Input from Differential to Single Ended05/23/2002
C en Add Resistor to Reduce Drive of Feedback to PLL01/10/2011
C en Transient Protection07/12/2010
A en Vibration Parameters During Test04/29/2003
A en Software MOD 0707/18/2003
A en Remove C3 to Eliminate Failure Mode07/18/2003
B en Protect Q5 from Spikes10/14/2003
A en Mic Impedance for Use with Non-Carbon Mic Systems04/15/2002
A en Mic Audio Input from Differential to Single Ended02/26/2004
B en Reduce Drive of Feedback to PLL01/10/2011
A en Transient Protection02/26/2004
A en Remove Capacitor to Eliminate a Rare Failure Mode02/26/2004
en Provide Greater Margin for Overvoltage Protection07/31/1984
C en Inspection of Capacitor C2207/11/2003
A en Power Supply Latch-Up and Turn On03/15/2000
en Identify NAV/MKR/GS RF Connectors with Color Code08/12/1987
C en Use of Capacitors with Higher Voltage06/23/2006
C en Replacement of Receiver Capacitors04/20/2004
1 en Provide for DC Sin/Cos Outputs01/31/1986
1 en Improve Glideslope Receiver Rejection Propeller Modulation06/20/1988
en Decrease DME Interference with NAV Receiver02/28/1988
A en Inspection for Proper Soldering of Trimpots04/29/2003
en Increase Glideslope Sensitivity06/20/1988
A en Inspection of Glideslope Cover Screws04/29/2003
en Extends Dynamic Range of AGC06/20/1988
A en Vibration Parameters During Test04/29/2003
en Improve Autopilot LOC Capture Characteristics05/19/1988
B en Switch Transformer Drive Circuitry03/17/2006
C en Switch Transformer Drive Circuitry04/14/2016
A en Improves Intermittent GS03/19/2004
1 en Prevent Spurious Oscillations (Birds)10/02/1989
1 en Prevent Operational Anomoly with Marker Receiver03/19/1990
en Reduce Voltage on ILS Energize Line09/21/1990
1 en Separate Adjustments of VOR/LOC Composite Output10/31/1992
1 en Flag NAV Output with the Loss of 9960 Hz Subcar10/31/1994
en Eliminate Interference from Glideslope Receiver10/31/1994
1 en Flag NAV Output with Loss of 9960 Hz Subcarrier10/31/1994
en Meet Requirements of ICAO Annex 10 for FM Broadcast Interference11/30/1994
B en Enhances Spurious Response Performance Level03/17/2006
A en Cap Array Conformal Coat Process04/26/2013
B en Power Supply Reliability Enhancement04/20/2016
B en Marker Beacon Transistor Replacement12/30/2015
en Conversion/BAE Aircraft Utilizing Smiths EFIS12/06/1990
en Add Ferrite Beads to Meet Eurocae Requirements07/31/1984
en Modification of WCS-300B to Provide Channel Selectable PTT04/21/1989
A en Correct Thumbwheel Assembly Clearance Problem10/01/1997
A en Change Adjustable Resistor from 500 Ohm to 1000 Ohm04/07/2003
Service Information Letters
NameRevisionLangSubjectDate
en The Operation of the FlightLogic Display in Cold Temperatures11/21/2003
B en EFIS Software Version 5.0A Known Anomalies01/04/2005
en EFIS Upgrade Process Issue for EFIS IDU Software Version 5.0A09/22/2004
B en Modification of User Waypoints11/17/2004
A en Shadin ADC-2000 Tray Inspection12/10/2004
B en Shadin ADC-2000 Altitude Readings03/11/2005
A en Using Glideslope Superflag with the AIU02/07/2005
A en Obstruction Database Date05/31/2005
A en Potential Limits Modification when Updating to 5.0B EFIS Software07/07/2005
A en Airworthiness Directive AD 2005-25-08, Shadin ADC-2000 Air Data Computer12/16/2005
A en Correction to EFIS Installation Instructions, Doc. 150-045264, Rev U02/02/2006
Service Instructions
NameRevisionLangSubjectDate
A en Universal MOD Marking Label12/15/2004
B en Universal MOD Marking Label03/23/2015
A en MOD B Installation09/08/2010
A en Allows Installation of Software MOD 0411/04/2005
J en MTM Guard Support05/09/2006
A en Interference with Display and Power Supply11/17/2004
C en Change Clock to 32KHz to Eliminate Interference on 12MHz Channeling04/13/2009
A en 406 Self Test Sensitivity Adjustment09/10/2010
A en 406 Battery Harness Modification09/07/2010
A en G-Switch Replacement10/13/2010
B en Replacement of Rotary Switch12/09/2004
A en Replacement of Rotary Switch12/09/2004
A en Replacement of Rotary Switch12/09/2004
A en Replacement of Rotary Switch12/09/2004
A en Replacement of Rotary Switch12/09/2004
A en Mic Audio Input from Differential to Single Ended05/03/2007
A en Install Diode to Prevent Load Down of TX Interlock Line in the Off State10/26/2007
A en Improvement for Squelch Hysteresis, Fail 2 and Audio Pop06/12/2008
A en Protect P.L.L. from Negative Turn on Transient08/26/2008
A en Improve P.A. Performance and Tuning08/27/2008
A en Install SWID 0701/23/2009
A en Improve Bearing Drift08/17/2011
C en Improve Bearing Drift11/02/2011
D en Improve Bearing Drift06/01/2017
A en Improve Mismatch and Radio Sensitivity08/17/2011
A en Replace Receiver Module Vari-Caps C15-20 to Improve Reliability07/25/2006
A en Replace Resistors to Eliminate "Hold 1" Error01/24/2007
B en Allow Free Running ARINC 568 Clock09/26/2007
B en Install SWID 3402/19/2009
A en Allows Installation of Software MOD 0504/23/2007
A en Add Extended CTCSS Tone Capability03/30/2005
A en Encoder Knob Replacement03/03/2005
A en Terrain Database Update07/16/2004
B en Terrain Database Upgrade 070112/05/2007
A en Rerouting of Wire on Chassis09/27/2004
A en To Reduce Harmonics and Improve the Sensitivity06/28/2004
B en RT-5000-5011 Install Mods 3, 4, & 1012/06/2007
A en RT-5000-0611 Vote Scan and AES Upgrade12/03/2007
B en Installation 150-040879 f Software SWID 1707/25/2008
A en To Improve Power Supply Reliability05/22/2008
A en Use of Capacitors with Higher Voltage04/28/2004
A en Improve Receive Audio Response after Transmit12/03/2007
B en To Increase Voltage Rating of Audio Board Capacitor C6906/24/2009
A en To Improve the Tuning of the IF Stage03/09/2005
B en Improvement of Insertion Loss of Low Pass Filter10/17/2005
B en Add Protection to the PA During Improper Antenna Load Conditions08/09/2005
A en Improve T/R Switch Reliability and Improve Power Leveling Under VSWR08/25/2005
A en Fix Variations in Audio Output Level11/30/2006
B en Replace Ferrite on B100, B101, and T404/22/2009
B en To Prevent Overmod at Lower Frequencies04/22/2009
A en To Improve the Tuning of the IF Stage03/09/2005
A en Improvement of Insertion Loss of Low Pass Filter11/08/2004
B en Add Protection to the PA During Improper Antenna Load Conditions08/09/2005
A en Improve T/R Switch Reliability and Improve Power Leveling Under VSWR10/17/2005
A en Improvement of Insertion Loss of Low Pass Filter10/17/2005
A en Replace Ferrite on B100, B101 and T404/22/2009
A en To Prevent Overmod at Low Frequencies04/22/2009
B en Modification for Rotor Blade Modulation10/23/2007
C en Modification for Rotor Blade Modulation07/15/2013
B en Improves Drifting of VOR Bearing and Glideslope12/12/2005
B en Corrects No Power Up or High Start Up03/03/2006
A en Improve Glideslope AGC Board Clearance & Reduce Noise06/19/2006
A en Improve GS and LOC Sensitivity By Grounding R316502/07/2007
D en VOR Sensitivity Improvement12/27/2007
A en Replace Richey Cap C3060 to Improve NAV Converter Reliability10/23/2007
Service Notices
NameRevisionLangSubjectDate
A en Test Panel Modification (Bendix/King)08/02/2001
A en Test Panel Modification02/01/2001
A en Inspection Instructions11/30/2011
A en Correct Typo in Dynamic Range Test12/22/2005
A en Fixes Inoperative DCS Tone Feature01/18/1999
A en Fixes Active Antenna Tuning06/25/1999
B en Create Single Zone Codeplug05/05/2008
A en Narrow Band Factory Upgrade05/09/2001
A en KTS Display Indication During Test01/27/2006
A en Test for One Minute Timer that Limits Transmitter Duty Cycle04/11/2002
A en Test for One Minute Timer that Limits Transmitter Duty Cycle04/15/2002
User Guides & Manuals
NameRevisionLangSubjectDate
D en TU-40105/31/2008
C en C-5000 Remote Programmer06/01/2009
D en C-5000 Remote Programmer12/04/2012
C en RMUSIM, DBCU, RT-500006/19/2009
Worksheets
NameRevisionLangSubjectDate
A en AT-434A, C5 Select03/08/2013
A en AT-434A, Preliminary Test03/08/2013
A en AT-434A, Final Test03/08/2013
Miscellaneous
NameRevisionLangSubjectDate
1.00 en Acceptance Test Reports: Test Set05/09/2007
A en Theories of Operation: 300-043522 RT-5000 Motherboard05/17/2012