DHC Technical Publications

* For CL technical publications, please visit: aerialfirefighter.vikingair.com/support/technical-publications

de Havilland Canada aircraft are recognized the world over for their reliability and longevity, and Viking is committed to keeping the fleet operational and in service for years to come. This commitment includes simplifying access to current versions of and revisions to Maintenance and Flight Manuals for DHC-2 Beaver through to DHC-7 Dash 7 aircraft. Viking has worked with Aircraft Technical Publishers (ATP) to provide up-to-date, digital versions of the technical libraries that are easily accessible and available by subscription.

Current Manual Status List, DHC-2 to DHC-7

View LIST

To obtain a subscription to a digital library, please contact ATP:

For more information on digital technical publications, please contact technical.publications@vikingair.com.

Service Bulletins

* For CL service bulletins, please visit: aerialfirefighter.vikingair.com/support/technical-publications

The table below contains the full list of service bulletins that have been issued in relation to DHC-2 Beaver, DHC-3 Otter, DHC-6 Twin Otter and DHC-7 Dash 7 aircraft. This list is for reference purposes only. To purchase a subscription to a digital library, please contact Aircraft Technical Publishers. To obtain a copy of a particular service bulletin or for more information, please contact our Technical Publications Administrator.

Displaying 1 - 20 of 1684

Bulletins RSS

Aircraft S/B No. Title Original Issue Latest Issuesort descending
DHC-7 7-23-17

Communications - Introduction of Diode to Flight Attendant's Panel Electrical Circuit
- Modification 7/2208 (A/C 1 thru 92)

Feb 25, 1983
DHC-6 6/143

Cockpit - Noise Level Reduction
Mod. 6/1079
(A/C 1 thru 60)

May 27, 1968
DHC-7 7-61-8

Propellers - Incorporation of Improved Bearing Race
-  Hamilton Standard S/B 61-1027
(Effectivity - See Hamilnto Standard S/B 61-1027)

Oct 9, 1981
DHC-6 6/63

Intake Deflector/Snow Separator Testing Procedure
(All A/C)

Nov 7, 1967
DHC-7 7-28-14

Fuel System - Alternative Refuel/Defuel Valve
- Modification 7/1739
(A/C 1 thru 65)

Sep 23, 1983
DHC-7 7-54-7

Nacelle Aft End Fairing Doors -  To Replace Bungee Cord Spring with Steel Wire Coil Springs
-  Modification 7/1374
(A/C 1 thru 4, 6, 7, 9 and 10)

May 25, 1979
DHC-6 6/319

Propeller Restraint
Mod. 6/1505
(A/C 1 thru 430)

Jan 10, 1975
DHC-7 7-39-6

Instruments - Engine Turbine Temperature and Propeller Tachometer Clamp Replacement
- Modification 7/1998
(A/C 3 thru 72)

Mar 5, 1982
DHC-2 2/34

Not applicable

DHC-7 7-25-19

Furnishings - Toilet Compartment -  Addition of Access Panel
-  Modification 7/1694 (A/C 1 thru 16) (17 thru 35 under de Havilland E.O. 74459)

Mar 27, 1981
DHC-2 TB/14

PT6A-6 & PT6A-20 Engine Vibration Isolators - Replacement

Feb 7, 1968
DHC-7 7-24-8

Electrical System - External Power Connector and Limiter - Introduction of Copper Bus Bars
- Modification 7/1472 (A/C 1 thru 12)

Jun 22, 1979
DHC-6 6/159

Nosewheel Steering - Operating Cable - Double Shank Swaged Ball - Introduction
Mod. 6/1164
(A/C 1 thru 170)

Sep 12, 1968
DHC-7 7-32-22

Main Landing Gear - Lower Drag Strut
-  Menasco S/B 32-19
(A/C 1 thru 22 if Drag Strut not Stamped SB 32-19 as shown in Menasco S/B 32-19)
-  Special Inspection for Clearance

Apr 11, 1980
DHC-6 6/495

Ice and Rain Protection - Inspection and Reinforcement of Propeller De-Ice Terminal Clamp Assembly
(A/C with S.O.O. 6005 Incorporated)

Jan 23, 1987
DHC-7 7-71-5

Forward Engine Firewall Rework -  To Accommodate Pratt and Whitney Synchrophaser Trimmer Head Housing -  Modification 7/1760
(A/C 1 thru 25)

Nov 28, 1980
DHC-7 7-21-3

Direct Vision Window - To Introduce Seal at Air Conditioning Duct Outlet
- Modification 711230
(A/C 1, 2 and 4)

Mar 23, 1979
DHC-7 7-29-2

Wheel Brake Shuttle Valves - Installation of Filter Fittings
- Modification 7/1443
(A/C 1 thru 4, 7 and 9)

Sep 29, 1978
DHC-6 6/415

Labels - Addition of OPEN-CLOSED" to Cockpit and Rear Doors
Mod. 6/1780
(A/C 210 and 231 thru 790)

Mar 26, 1982
DHC-3 V3/0004

NOT ISSUED

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