The Aviation DataBase: Service Information: Hawker Beechcraft Service Letters
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D18S - Service Letter
NameRevisionLangSubjectDate
en Kit 500 - Hat Holders10/29/1953
en Kit 501 - Ozite Rug Pad10/01/1954
en Kit 502 - Addition of Reservoir Drain for Hydromatic Propellers04/15/1953
en Sealing Cabin Windows04/15/1953
en Clearing Hydraulic Brake Hose06/01/1953
en Turning Landing Lights "On" or "Off" in Extended Position10/26/1951
en Interchangeability of Reverse Current Relays07/15/1952
en Modification of Beech Reclining Chair for Reverse Seating07/15/1954
en Reverse Current Relays and Voltage Regulators06/01/1953
Service Letter
NameRevisionLangSubjectDate
en Stabilator Rigging Tool 169-620000/80701/01/1963
en More Rear Seat Knee Room for Debonair01/01/1960
en Relocation of Cylinder Head Temperature Unit02/01/1961
en Getting Maximum Cabin Heat05/03/1963
en 23 Improvement Kit03/01/1963
en Vacuum System Installation04/01/1960
en Cowl Gill Modification for Hot Weather Operation02/01/1961
rev en Reinforcement of Engine Cowl Door Baffle10/18/1963
en Seat Lock Modification on Musketeer04/08/1963
en Baggage Door Seals03/01/1963
en Getting Maximum Cabin Heat05/03/1963
en Nose Cowl Baffle Installation for Winter Operations03/01/1961
en Third Window Installation04/01/1960
en Relocation of Fuel Boost Pump Aft of Firewall04/15/1963
en Baggage Door Seals03/01/1963
en 50 Ampere Generator Installation04/01/1960
en New Spring Prevents Accidental Brake Setting05/04/1963
en 33 Instruments09/01/1960
en Baggage Door Seals03/01/1963
en Rotating Beacons (Upper and Lower)09/01/1960
rev en Reinforcement of Engine Cowl Door Baffle10/18/1963
en Gyro Installation (Horizon and Direction)04/01/1960
en Getting Maximum Cabin Heat05/03/1963
en Heated Pitot Tube Installation08/01/1960
en Baggage Door Seals03/01/1963
en Oil System Check Valve Identification03/28/1950
en Glove Box Installation05/01/1960
en Baggage Door Seals03/01/1963
en Debonair Utility Kit08/01/1960
en Addition of Latching Relay to Starter Circuit05/15/1953
en Fresh Air Ventilation System08/01/1960
en Installation of Right Hand Rudder Pedals06/01/1960
en 33 Servicing and Maintenance of Landing Gear06/01/1960
en Exhaust Vent Installation12/01/1960
en Baggage Door Seals03/01/1963
en Modification of Elevator Tab Control12/01/1960
en Getting Maximum Cabin Heat05/03/1963
en Baggage Door Seals03/01/1963
en Cowl Gill Modification for Hot Weather Operation02/01/1961
en Relocation of Cylinder Head Temperature Unit02/01/1961
en Modification of Oil Tank Outlet Check Valve07/18/1947
en Getting Maximum Cabin Heat05/03/1963
en Nose Cowl Baffle Installation for Winter Operations03/01/1961
en Baggage Door Seals03/01/1963
rev en Reinforcement of Engine Cowl Door Baffle10/18/1963
en Oil System Check Valve Identification03/28/1950
en Getting Maximum Cabin Heat05/03/1963
en Baggage Door Seals03/01/1963
en Baggage Door Seals03/01/1963
en Baggage Door Seals03/01/1963
en Baggage Door Seals03/01/1963
en Baggage Door Seals03/01/1963
en Oil System Check Valve Identification03/28/1950
en Baggage Door Seals03/01/1963
en Aileron-Rudder Interconnect System: Part I: Modifying Bungee Clevis Ends Part II: Rigging Bungee Cables and Springs07/12/1963
en Alternate Air Control Installation07/17/1963
en An Aid to Installing and Removing Fuel Caps09/27/1963
en New Engine Lord Mount Absorbs Starting Torque10/12/1963
en Nose Wheel Steering Installation for Musketeers11/01/1963
en Repair of Cracks in Royalite Components11/04/1963
rev en Enlarged Holes Improve Drain Conditions in Musketeers05/01/1964
en Added Support for Rotating Beacon11/18/1963
en Landing Gear Torque Knee Pins Require Lubrication11/28/1963
en Change of Stabilator Tab Travel02/05/1984
en Preventive Maintenance for Fuel Systems01/13/1964
en Heavy Duty Battery for Musketeers01/24/1964
en Shock Mounts for Instrument Panel01/24/1964
en New Shimmy Dampener for Musketeer03/01/1964
en Winter Baffle for Musketeer Oil Cooler08/01/1964
en Modification of Fuel Vent System for Operation During Inclement Weather05/01/1964
en Checking Attach Bolts of Vertical Stabilizer on Musketeers for Torque06/01/1964
en Relocation of Shuttle Valves08/01/1964
en Importance of Complying with Brittain Service Bulletin A-00301/01/1965
rev en High Strength Bolt for Landing Gear Wheels on Bonanzas, Debonairs and Travel Airs11/01/1965
en Take-Off Procedure with Low Fuel Supply04/01/1965
en Part I. Larger Tires for Musketeer 23 Part II. Main Gear Wheel Alignment04/01/1965
en Heat and Vent System Operation and Adjustment04/01/1965
en Windshield Replacement05/01/1965
en Inspection of Wing Tip Lights for Proper Color07/01/1965
en Elimination of Radio Frequency Influence on H-14 Autopilot Operation07/01/1965
en Increased Flap Extension Speed07/01/1965
en Flap Rubber Bumper, Addition
en Landing Gear Safety System11/01/1965
en Care and Inspection of Rubber Fuel Cells
en Aft Cowl Reinforcement02/01/1966
rev en Shortened Deflectors on Lower Engine Compartment Access Plates05/01/1966
en Engine Baffle Reinforcements on Musketeer Super 11107/01/1966
en Lubrication of Landing Gear Up-Lock Rollers
en Reduction of Compass Error
en Increase in Baggage Load Allowance for Musketeer08/01/1966
en Inspection for a Cushion Clamp on Musketeer Cabin Air Duct09/01/1966
en Over-Priming Musketeer01/01/1967
en Approved Spins on Musketeer and Musketeer Sport04/01/1967
1 en Brake Installation Improvement on Musketeer06/01/1967
en Safety Improvement on early Bonanza Jacks06/01/1967
en Beechcraft Three-Point Aircraft Jacks
en Increase Service Life of Voltage Regulator
1 en New Throttle Control for Musketeer12/01/1968
en Improved Method of Fitting Musketeer Fuel Cell Rib to Spar at Landing Gear Fitting08/01/1967
en Test Inspection of Altimeters08/01/1967
1 en Test Inspection of Altimeters
en New Propeller Control for Musketeer Super III11/01/1967
en Improved Muffler12/01/1967
en Baggage Door Seals03/01/1963
en Fuel - Microbiological Contamination in Fuel Tanks & Fuel Systems03/14/2023
en Mandatory Landing Gear - Inspection of Left & Right Main Landing Gear (MLG) Retraction Jack Assemblies12/15/2021
1 en Mandatory Landing Gear - Inspection of Left & Right Main Landing Gear (MLG) Retraction Jack Assemblies03/11/2022
en Mandatory Navigation - Implement Airplane Flight Manual Changes After Disabling LNAV/VNA06/23/2021
en Navigation - Transmittal of Collins Aerospace Service Bulletin ALT-4000-34-14, Navigation - ALT 4000 Power Supply Robustness Improvement09/21/2022
en Fuel - Microbiological Contamination in Fuel Tanks & Fuel Systems03/14/2023
en Mandatory Navigation - Implement Airplane Flight Manual Changes After Disabling LNAV/VNAV06/10/2021
en Navigation - Transmittal of Collins Aerospace Service Bulletin ALT-4000-34-14, Navigation - ALT 4000 Power Supply Robustness Improvement09/21/2022
en Fuel - Microbiological Contamination in Fuel Tanks & Fuel Systems03/14/2023
en Navigation - Transmittal of Collins Aerospace Service Bulletin ALT-4000-34-14, Navigation - ALT 4000 Power Supply Robustness Improvement09/21/2022
en Fuel - Microbiological Contamination in Fuel Tanks & Fuel Systems03/14/2023
en Engine - Modification of Outer Combustion Case & Inner Bypass Duct Flange03/22/2022
en Miscellaneous - 4000 Airworthiness Limitation Manual (ALM-X) and Maintenance Schedule (AMS-B0) Update05/11/2018
en Mandatory Landing Gear - Nose Landing Gear (NLG) Strut Assembly Bearing Replacement06/15/2007
en Mandatory Landing Gear - Nose Landing Gear (NLG) Strut Assembly Bearing Replacement06/15/2007
en Mandatory Landing Gear - Nose Landing Gear (NLG) and Main Landing Gear (MLG) Strut Assembly Bearing Replacement06/15/2007
en Mandatory Landing Gear - Nose Landing Gear (NLG) and Main Landing Gear (MLG) Strut Assembly Bearing Replacement06/15/2007
en Mandatory Landing Gear - Nose Landing Gear (NLG) and Main Landing Gear (MLG) Strut Assembly Bearing Replacement06/15/2007
en Flight Controls - Install Missing Caterpillar Grommets in Bulkhead Cutouts01/11/2019
1 en Mandatory Flight Controls - Replace Aileron Trim Tab Pushrod Assemblies02/08/2019
en Fuel Cross-Feed Shut-Off Valve Cam Anodization (Hard Coat)07/23/2004
en New Stall Identification Switches03/26/2003
en Updated Integrated Modular Avionics Configuration Index Table (ICIT) file for Fusion Equipped King Airs05/11/2016
en Mandatory Electrical Power - Transmittal of Continental Aerospace Technologies Critical Service Bulletin CSB19-0610/04/2021
en Mandatory Equipment/Furnishings - Millennium PSU Panel Wiring Modification Transmittal04/04/2018
en Navigation - Pre-NXI Garmin G1000 System Software Upgrade to Version 0857.10 for ADS-B Out Enablement for WAAS Enabled Airplanes Only09/11/2019
1 en Navigation - Pre-NXI Garmin G1000 System Software Upgrade to Version 0857.10 for ADS-B Out Enablement for WAAS Enabled Airplanes Only11/30/2020
en Navigation - Transmittal of Garmin Service Advisory No 1612 Revision E, 2020 IGRF (International Geomagnetic Reference Field) Magnetic Field Model02/02/2021
en Navigation - Transmittal of Garmin SB 19102 GRS 56 Mod 111/02/2021
1 en Wings - Inspect Wing Nacelle Keels for Missing Rivets02/04/2020
en Mandatory Propeller - Propeller Governor Inspection in Accordance with McCauley ASB27311/16/2018
en Mandatory Power Plant - Transmittal of Lycoming Service Bulletin No. 632A Identification of Connecting Rods with Non-Conforming Small End Bushings07/26/2017
en Mandatory Power Plant - Transmittal of Continental Motors SB18-04A Replacement of Flanged Nut01/26/2021
en Mandatory Power Plant - Transmittal of Continental SB 19-07 - Crankshaft End Play Check12/17/2020
1 en Mandatory Power Plant - Transmittal of Continental Aerospace Technologies MSB23-01A03/10/2023
en Mandatory Power Plant - Transmittal of Continental Aerospace Technologies Service Bulletin SB24-03: Continental 100 AMP Alternator Inspection08/23/2024
en Mandatory Ignition - Transmittal of Continental Motors SB19-02A, Lycoming SB 637, and Champion Aerospace Slick Service Bulletin SB1-1911/19/2019
en Ignition - Transmittal of Continental Motors SB15-4A, Lycoming SB 622A, and Champion Aerospace Slick Service Bulletin SB1-15A10/21/2019
1 en Mandatory Ignition - Transmittal of Lycoming Service Bulletin No. 660 & Champion Aerospace Slick Service Bulletin SB1-24a04/21/2025
en Mandatory Oil - Transmittal of Continental Aerospace Technologies CSB07-1A Connecting Rod Piston Pin Bushing Inspection04/22/2021
en Miscellaneous - Installation of Cessna & Beechcraft Variant Part Numbers01/27/2025
1 en Stabilizers - Horizontal Fastener Replacement11/14/2023
en Servicing - Air Conditioner Compressor Oil Quantity Manual Changes09/26/2019
1 en Servicing - Air Conditioner Compressor Oil Quantity Manual Changes10/22/2019
en Air Conditioning - Inspection of Cabin Altitude and Differential Pressure and Cabin Rate of Climb Indicators for Installed Shipping Plugs09/10/2019
en Air Conditioning - Electric Heater Thermal Fuse Replacement11/10/2021
en Air Conditioning - Cockpit Foot Warmer Duct Inspection08/08/2023
en Air Conditioning - Lower Cabin Environmental Ducting Sleeve Replacement02/11/2025
en Air Conditioning - Environmental Ducting Clamp Inspection10/13/2025
en Auto Flight - Transmittal of Rockwell Collins Operators Bulletin (OPSB) 0166-17 - FMS May Turn in Wrong Direction After Sequencing a "Climb to" Altitude that was Manually Edited or Temperature Compensated10/18/2017
en Mandatory Auto Flight - Transmittal of Innovative Solutions & Support Inc Recall Notice RN220305/10/2022
2 en Mandatory Auto Flight - Transmittal of Innovative Solutions & Support Inc Recall Notice RN220312/02/2022
en Auto Flight - IS&S Standby Display with Autothrottle Software Update: Release 8.101/18/2023
en Auto Flight - Transmittal of Innovative Solutions & Support Inc Sl2220-2 Standby Display with Autothrottle SW Update Release 9.108/02/2023
en Equipment/Furnishings - MedAire First Aid Kits with Medication Subject to Recall Notice11/05/2019
en Equipment/Furnishings - Aft Curtain Placard Inspection08/12/2020
en Equipment/Furnishings - Announcement of Ipeco SB480-25-01 Carrier & Brake Improvement for Passenger Seats10/06/2021
en Equipment/Furnishings - Transmittal of Ipeco Service Bulletin 480-25-02 Free Play Reduction Product Improvement for Passenger Seats06/26/2024
en Mandatory Fire Protection - Fuselage Only Bleed Air Ethylene Vinyl Acetate (EVA) Inspection10/30/2024
1 en Mandatory Fire Protection - Fuselage Only Bleed Air Ethylene Vinyl Acetate (EVA) Inspection04/02/2025
en Mandatory Fire Protection - Center Wing & Nacelle Bleed Air Warning Line Inspection10/07/2025
en Fire Protection - Bleed Leak Sense Line Pro Seal Inspection07/03/2025
1 en Mandatory Flight Controls - Control Column Master Link Aileron Interconnect Chain Inspection10/04/2017
en Mandatory Flight Controls - Inspection of Elevator Trim Tab Servo Bracket Assembly Phenolic Block for Chamfers01/29/2020
en Mandatory Flight Controls - Elevator Torque Shaft Assembly Inspection06/06/2023
1 en Flight Controls - Aileron Position Transducer Connector Bracket Relocation04/19/2023
en Mandatory Flight Controls - Rudder Pedal Pushrod Linkage Inspection02/06/2025
en Mandatory Flight Controls - Pilot & Copilot Rudder Pedal Pushrod Linkage Inspection07/25/2025
en Fuel - Microbiological Contamination in Fuel Tanks & Fuel Systems10/30/2024
en Fuel - Engine Fuel Shutoff Valve Inspection05/30/2025
en Mandatory Ice and Rain Protection - Inertial Vane Control Journal Verification04/01/2019
en Ice & Rain Protection - Transmittal of Collins Aerospace SB 8752-30-001 Revision 1, Black Standard, Standard Silver Urethane, FASTboot® Silver Urethane, & FASTboot® Pneumatic De-Ice Boots04/15/2025
1 en Indicating/Recording Systems - Collins Environmental Controller (IEC) & Power Supply (PWR) IAPS Modules Inspection/Replacement04/25/2023
en Indicating/Recording Systems - Digital Flight Data Recorder (DFDR) Inspection06/13/2025
en Mandatory Indicating/Recording Systems - Removal of Cabin Accent Lights Switch from Flight Compartment Overhead Panel for Aircraft with Slick Interior Configuration10/30/2025
en Landing Gear - Inspect Steering Support Bracket for Incorrect Bolts05/30/2019
1 en Landing Gear - Inspect Steering Support Bracket for Incorrect Bolts07/24/2019
1 en Mandatory Cancelled11/17/2021
en Mandatory Landing Gear - Landing Gear Control Switch Inspection11/18/2022
1 en Mandatory Landing Gear - Landing Gear Control Switch Inspection12/02/2022
en Mandatory Landing Gear - Power Pack Remote Control Circuit Breaker Wiring Inspection03/01/2023
en Navigation - GPS-4000S Global Positioning System Software Update05/14/2020
1 en Navigation - GPS-4000S Global Positioning System Software Update10/06/2021
en Navigation - Transmittal of Collins Aerospace Service Bulletin ATL-4000-34-D, Navigation - ALT-4000 - Evaluation of Surface Mount Ferrite Bead Used on Power Supply03/08/2022
en Navigation - Transmittal of Collins Aerospace Service Bulletin ALT-4000-34-14, Navigation - ALT 4000 Power Supply Robustness Improvement10/14/2022
1 en Pneumatic - Engine Flow Pack T-Fitting Inspection12/05/2023
en Pneumatic - Flow Control Valve Insulation Inspection04/17/2024
en Pneumatic - Bleed Air Flow Control Valve Inspection06/11/2024
en Pneumatic - Pneumatic Insulated Hose Inspection10/28/2025
en Doors - Cabin Door Lock Inspection02/21/2018
1 en Mandatory Doors - Cabin Entry Door Hook Replacement03/29/2023
en Fuselage - Inspect Left and Right Emergency Exit Reinforcements for Removed Material and Retreat if Rough or Without Finish06/30/2020
1 en Mandatory Fuselage - Forward Fuselage Fastener Inspection09/07/2022
en Mandatory Fuselage - Cross Tie Fastener Inspection at Fuselage Station 158.0001/31/2023
1 en Mandatory Fuselage - Forward Fuselage Fastener Inspection05/15/2023
2 en Mandatory Fuselage - Forward Fuselage Fastener Inspection06/28/2023
3 en Mandatory Fuselage - Forward Fuselage Fastener Inspection03/19/2024
1 en Mandatory Fuselage - Filler Shim or Fastener Installation at Fuselage Station 22109/19/2023
2 en Mandatory Fuselage - Filler Shim or Fastener Installation at Fuselage Station 22110/31/2023
3 en Mandatory Fuselage - Filler Shim or Fastener Installation at Fuselage Station 22111/30/2023
en Mandatory Fuselage - Crosstie Reinforcement Installation at STA 179.525 & STA 201.77511/08/2024
en Fuselage - Forward & Aft Cargo Door Frame Repair07/25/2025
en Stabilizers - Inspection of Washer Location in Elevator Support Assembly05/18/2018
en Stabilizers - Horizontal Fastener Replacement10/17/2023
en Windows - Window Shade Dust Pane Bonding Improvement03/06/2023
en Mandatory Wings - Lower Forward Wing Bolt Crush Washer Inspection/Replacement07/20/2018
1 en Mandatory Wings - Lower Forward Wing Bolt Crush Washer Inspection/Replacement09/19/2018
2 en Mandatory Wings - Lower Forward Wing Bolt Crush Washer Inspection/Replacement10/01/2021
en Mandatory Wings - Lower Forward Inboard Attach Fitting Inspection11/05/2019
1 en Mandatory Wings - Winglet Missing Screws06/02/2023
en Mandatory Wings - Crack Inspection - Wing Attach Fittings & Outboard Wing Spar Caps for Heavyweight B300/B300C02/21/2025
1 en Mandatory Wings - Crack Inspection - Wing Attach Fittings & Outboard Wing Spar Caps for Heavyweight B300/B300C03/27/2025
en Wings - Inboard Aileron Hinge Arm Inspection07/16/2025
en Engine Fuel and Control - Examine Left Firewall Fuel Filter and Associated Fuel Lines for Possible Sealant Contamination11/05/2019
en Mandatory Engine Fuel & Control - Inspection of Fuel Pressure Switch O-Ring05/02/2024
en Engine Controls - Power Control Cable Inspection05/02/2019
en Engine Controls - Transmittal of Innovative Solutions & Support Service Bulletin SB2124 & Recall Notice RN211110/14/2021
en Rudder Flow Trigger Rework12/20/2001
en Attitude and Heading Reference System (AHRS) Upgrade04/01/2005
en AmSafe Restraint System-End Release Buckle Inspection06/29/2006
en Hydraulic Power - Left Hand and Right Hand Hydraulic Pump Output Pressure Line Replacement11/09/2006
en Flight Controls - Pitch Trim Actuator P/N 390-386004-0005 Inspection/Replacement08/03/2007
en ELEB Landing Gear Non-Conformance12/11/2007
en Sideslip Limit Exceedance Inspection11/06/2007
en Stabilizers - Inspection of Horizontal Stabilizer Forward Spar11/22/2011
en Flight Controls - Aileron Trim Tab Actuator Assembly Replacement02/28/2014
en Mandatory Air Conditioning - Transmittal of Kelly Aerospace Service Bulletin KATS-SB-19-001 Rudder Cable Clearance on Cessna T206H Equipped with Kelly Aerospace Thermal Systems Air Conditioning per STC SA03302CH01/31/2019
en Mandatory Air Conditioning - Transmittal of Kelly Aerospace Thermal Systems NC-19-009 Cessna 206 Controller Cover Special Installation02/20/2019
en Mandatory Electrical Power - Transmittal of Continental Aerospace Technologies Critical Service Bulletin CSB19-0610/04/2021
en Mandatory Electrical Power - Alternator Exhaust Coupling Installation04/25/2023
en Electrical Power - Transmittal of Hartzell Alert Service Bulletin No. 097 Alternator Mounting Flange Inspection06/13/2023
en Mandatory Equipment/Furnishings - Millennium PSU Panel Wiring Modification Transmittal04/04/2018
1 en Mandatory Flight Controls - Elevator Trim Tab Actuator Screw Replacement08/15/2023
1 en Navigation - Transmittal of Garmin Service Documents for 2020 IGRF (International Geomagnetic Reference Field) Magnetic Field Model02/16/2021
en Navigation - Pre-NXI Garmin G1000 System Software Upgrade to Version 0858.10 for ADS-B Out Enablement for WAAS Enabled Airplanes Only09/11/2019
1 en Navigation - Pre-NXI Garmin G1000 System Software Upgrade to Version 0858.10 for ADS-B Out Enablement for WAAS Enabled Airplanes Only11/30/2020
en Navigation - Transmittal of Garmin SB 19102 GRS 56 Mod 111/02/2021
en Fuselage - Beechcraft Model G36 Firewall Fastener Inspection10/09/2025
en Mandatory Wings - Bonanza Stall Strip Relocation02/01/2019
en Mandatory Propeller - Propeller Governor Inspection in Accordance with McCauley ASB27311/16/2018
en Mandatory Power Plant - Transmittal of Lycoming Service Bulletin No. 632A Identification of Connecting Rods with Non-Conforming Small End Bushings07/26/2017
en Mandatory Power Plant - Transmittal of Continental Motors SB18-04A Replacement of Flanged Nut01/26/2021
en Mandatory Power Plant - Transmittal of Continental SB 19-07 - Crankshaft End Play Check12/17/2020
2 en Mandatory Power Plant - Transmittal of Continental Aerospace Technologies MSB23-01A03/17/2023
en Mandatory Power Plant - Transmittal of Continental Aerospace Technologies Service Bulletin SB24-03: Continental 100 AMP Alternator Inspection08/23/2024
en Ignition - Transmittal of Continental Motors SB15-4A, Lycoming SB 622A, and Champion Aerospace Slick Service Bulletin SB1-15A11/14/2019
en Mandatory Ignition - Transmittal of Continental Motors SB19-02A, Lycoming SB 637, and Champion Aerospace Slick Service Bulletin SB1-1902/05/2020
1 en Mandatory Ignition - Transmittal of Continental Motors SB19-02A, Lycoming SB 637, and Champion Aerospace Slick Service Bulletin SB1-1903/24/2020
en Mandatory Ignition - Transmittal of Continental Service Bulletin CSB673C11/04/2022
1 en Mandatory Ignition - Transmittal of Lycoming Service Bulletin No. 660 & Champion Aerospace Slick Service Bulletin SB1-24a04/21/2025
en Mandatory Oil - Transmittal of Continental Aerospace Technologies CSB07-1A Connecting Rod Piston Pin Bushing Inspection04/21/2021
en Miscellaneous - Installation of Cessna & Beechcraft Variant Part Numbers01/27/2025