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DataBases updated: Mar 9th, 2026
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Airworthiness Limitations
NameRevisionLangSubjectDate
9 en DHC-6 Twin Otter4/30/2018
All Operator Messages
NameRevisionLangSubjectDate
en SB 2/41 and 2/55 Clarification8/31/2006
en Pilot Recognition Award Program11/23/2010
en Introduction of Online Digital Technical Publication Format6/5/2012
en Introduction of Digital Technical Publication Format12/17/2009
en Distribution of MB100878 & 879 Engine Mount Vibration Isolators4/9/2010
en Modifications to Enhance Emergency Egress for Aircraft Operating in a Marine Environment5/5/2010
en Modifications to Enhance Emergency Egress for Aircraft Operating in a Marine Environment Update7/12/2010
en Modifications to Enhance Emergency Egress for Aircraft Operating in a Marine Environment Update2/15/2011
en Component Availability5/21/2010
en Introduction of Digital Technical Publication Format8/3/2010
en Introduction of Digital Technical Publication Format8/3/2010
en 2010 Performance Rule4/28/2010
en Revision to DHC-6 300 AFM & Supplementary Operating Data Manual6/1/2011
en Production Restart of 72110079-005 Bleed Air System, Flexible Hose2/8/2010
en Additional 772531-2 Prop Barrels Available10/25/2010
Inspection Requirements Manual Temporary Revisions
NameRevisionLangSubjectDate
en DHC-6 Twin Otter: Updates Fuel Gallery Inspection Tasks to Include All Float Operation Configurations7/27/2021
Maintenance Manual Temporary Revisions
NameRevisionLangSubjectDate
en DHC-2 Beaver: Elevator Control Rod Assembly to Periodic Inspection3/4/2015
en DHC-2 Beaver: Elevator Control Rod Assembly to Periodic Inspection3/4/2015
en DHC-3 Otter: Elevator Servo Tab5/6/1997
en DHC-3 Otter: Elevator Servo Tab12/5/2008
en DHC-3 Otter: Elevator Control System12/5/2008
en DHC-3 Otter: Elevator Trim Tab Control System12/5/2008
en CL-215 Series: Mod CL/0076, Water Drop System - Hydraulic Solenoid Electrical Back-EMF Protection4/13/2022
Publication Indexes
NameRevisionLangSubjectDate
en Manual Status List - DHC-2 to DHC-73/1/2018
33-1 en CL-215-1A10 & CL-215-6B11 Service Bulletin Index5/31/2016
Repair Manuals
NameRevisionLangSubjectDate
rev en DHC-3 Otter8/1/1963
Service Bulletins
NameRevisionLangSubjectDate
4 en Wings - Inspection of Wing and Fuselage Attachment Structures at Wing Root Area for Cracks1/22/2019
en Ignition - Replacement of Magneto Firewall Connector6/27/2007
A en New Cabin Door Windows that Incorporate a "Push-Out" Feature10/25/2010
en Installation of an Automotive Style Cabin Door Latch System11/15/2010
en Elevator Control Rod and Elevator Actuating Lever on Control Column3/26/2012
C en Elevator Control Rod and Elevator Actuating Lever on Control Column7/17/2015
en Inspection and/or Replacement of MS21042 Locknut in Horizontal Stabilizer (P/N C2TP1A)4/29/2013
A en Inspection - Wing Rear Spar and Flap/Aileron Hinge Brackets2/10/2017
en Part Replacement - Front Wire Pull Fitting VALTBS1245-1/-2 & VALTBS1244-1 Rear Float Strut & Wire Pull Fittings2/25/2011
A en Part Replacement - Front Wire Pull Fitting VALTBS1245-1/-2 & VALTBS1244-1 Rear Float Strut & Wire Pull Fittings9/12/2011
en Gross Weight Increase STC SA92-63 or SA00299NY, Part Replacement - Front Wire Pull Fittings VALTBS1245-1/-2 & VALTBS1244-1 Rear Float Strut & Wire Pull Fittings11/28/2012
C en Wing Strut Assembly Lower Attachment Fittings-Special Inspection6/23/2006
E en Stabilizers - Special Inspection for Cracks in Front Spar of Horizontal Stabilizer (and Rectification)1/23/2007
en Wing Strut Assembly Lower Attachment Fittings - Eddy Current Inspection6/23/2006
en DHC-3 Wing Box Inspection Holes in Lower Wing Skin7/3/2013
en Ignition - Replacement of Magneto Firewall Connector6/27/2007
en DHC-3 Complete Wing Box Inspection - Borescope and Visual9/27/2010
C en DHC-3 Complete Wing Box Inspection - Borescope and Visual4/30/2014
A en Trim Jack Mounting Block - Horizontal Stabilizer Actuator - Inspection5/27/2014
C en DHC-3 Wing Strut Attach Bolt Inspection/Replacement5/16/2018
en Replacement of DHC-3 Wing Strut (Main Spar) Lug Fitting & Fuselage Tie-Bar2/9/2017
en Alert Inspection and Replacement of DHC-3 Wing Strut Assembly C3W10011/26/2019
en Engine Mount Pickup Fittings - Inspection1/20/2022
en Secondary Flight Controls - Installation of Retro Kit No. V3MK1151 to Replace Modified Elevator Servo Tab3/8/2002
en Retrofit T5 Indication - CMVMK40022/26/2008
en DHC-6 Fuselage Main Frame Bushings2/24/2011
en Inspection Following Volcanic Ash Condition4/6/2011
en Inspection after Volcanic Ash Condition6/16/2010
en Inspection of Wing Nose Spar Hinge Boom (P/N C6WM1057-30)4/6/2011
en Reverse Current Relay (RCR) Operator Survey Campaign2/8/2012
A en Drain Hole Installation for Lower Engine Cowls7/12/2011
en Fastener Corrosion Prevention for Carbon Fibre Composite Assemblies5/26/2011
en Instructions for Re-Labeling DHC-6 Main Landing Gear Using Authorized Data Plate4/6/2011
en Instructions for Re-Labeling DHC-6 Control Column Using Authorized Data Plate4/6/2011
en Instructions for Re-Labeling DHC-6 Elevator Using Authorized Data Plate4/6/2011
en Drain Hole Modifications for Cockpit Doors4/6/2011
en Instructions for DHC-6 Main Landing Gear Maintenance Schedule and Methodology and Serialization12/7/2011
en Instructions to Bring Wing Doubler C6W1047-45 into Conformance with Production Drawing5/26/2011
D en Fire Detection Probe Assembly - Protective Sealant - Engine9/28/2011
B en Aileron Cables Fouling at Wing Root Rib Fairlead and at Fuselage Skin - Inspection6/13/2014
en Internal Fuel Leak Test & Thermal Relief Check Valves10/11/2011
en Alert Defective Engine Cowling Latches - P/N C6EC1002-9312/2/2011
en Pulley - Flap Follow-Up Control System2/6/2012
B en Fuel Gallery Corrosion Control9/13/2021
A en Engine Controls - Binding of FCU Push Rod End Bearings2/1/2021
A en Aileron Structure Inspection12/9/2019
A en Rudder Pedal Torque Tube Quadrant - Inspection1/26/2021
A en Flight Controls - Special Inspection for Distortion to Elevator Quadrant and Cracks in Quadrant Mounting Bracket Assembly Lugs6/22/1990
en Wing - Front Spar Adapter Assembly (P/N C6WM1027-1) - Inspection for Cracks10/1/2007
en Wing - Front Spar Adapter Assembly (P/N C6WM1027-1) - Installation of Inspection Holes in Lower Wing Skin10/1/2007
en Wing - Removal of Wing Front Spar Adapter Assembly (P/N C6WM1027-1) and Replace with (P/N C6WM1027-3)10/1/2007
A en Alert Wing-Ultrasonic Inspection of Upper Wing Skin Inboard and Outboard Sides of LH and RH Engine Nacelles9/1/2006
en Alert Autoflight-Automatic Flight Control System - Inspection/Replacement of Elevator and Aileron Servo Drive Part Numbers5/29/2006
en Solenoid Valve Flight Spoiler Servo Unloading - Screw Replacement5/21/2008
en Solenoid Valve Second Stage Flap Dump - Screw Replacement5/21/2008
en DHC-7 Fluorescent Light System Overheating - Ballast Replacement (Transmittal Sheet)2/28/2008
en Cracks in Engine Outboard Nacelles Upper Longerons12/14/2012
A en Wings - Modification to Rear Spar Spoiler Synchro Wire Routing9/16/2006
Service Letters
NameRevisionLangSubjectDate
en Stabilizer Actuator Lock Ring – Special Inspection10/25/2022
en Flight Control Cable Return Program3/18/2009
en Main Landing Gear Overhaul Accomplishment via Factory Endorsed Component Centre's2/9/2010
Iss2 en Main Landing Gear Overhaul Accomplishment via Factory Endorsed Component Centre's2/9/2011
en C6VE1023-3 Duct Assembly, Insulated, Bleed Air, Engine5/18/2010
Supplemental Inspection & Corrosion Control Manuals
NameRevisionLangSubjectDate
1 en DHC-2 Beaver1/10/2019
en DHC-3 Otter12/21/2017
Technical Bulletins
NameRevisionLangSubjectDate
A en Inspection of DHC-2 Beaver Front Fuselage Strut Assemblies6/20/2019
en Introduction of KHF-1050 HF Communication Systems - S.O.O. 62151/9/2012
en Engine Controls - FCU Push Rod Assembly Replacement9/14/2020
A en Water Drop System - Water Door Selector Solenoid Valve, Electrical Back -EMF Protection6/20/2022
A en Water Drop System - Water Door Selector Solenoid Valve, Electrical Back -EMF Protection6/20/2022