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 81 - 100 of 1684

Bulletins RSS

Aircraft S/B No. Title Original Issue Latest Issuesort descending
DHC-7 7-27-78

Flight Controls - Introduction of Improved Ground Spoiler Selector Valve No. 1
- Modification 7/2484
(A/C 3 and Sub)

Mar 24, 1989
DHC-7 7-53-13

Airstair Door - Rework to Lower Pressure Stops on Fuselage Frame
- Modification 7/1766
(A/C 1 thru 22)

Sep 26, 1980
DHC-3 3/14

Tail plane Hinge Bolts C3T23-5 - Special Inspection

Apr 2, 1971
DHC-7 7-26-10

Fire Protection - Introduction of Alternative Automatic Fire Extinguisher, above Waste Container in Lavatory
- Modification 7/2550
(A/C 1 thru 110)

May 22, 1987
DHC-6 6/291

Engine Fuel System - 10 Micron High Pressure Fuel Filter
Mod. 6/1442
(A/C 1 thru 342 with S.O.O. 6117)

Mar 9, 1972
DHC-2 2/06

See TB/21

DHC-7 7-24-60

Electrical Power - A.C. System 400 Hz
-  Replacement of Paralleling Control Box
-  Modification 7/2459 (A/C 1 thru 107)

Nov 29, 1985
DHC-7 7-32-74

Landing Gear Selector Valve Restrictor - Special Inspection
(A/C 1 thru 107)

Jul 19, 1985
DHC-6 V6/0004

Inspection for Hinge Boom C6WM1057-30 Installed on DHC-6 S/N 603

Apr 6, 2011
DHC-7 7-79-4

Oil Cooler Drain Valve Installation
-  Modification 7/1536 (A/C 3 thru 23)

Oct 16, 1981
DHC-7 7-23-5

Cockpit Voice Recorder - Self-Test Mod. (A/C 1 and Sub. as required)

Jun 6, 1980
DHC-6 6/131

Engine Nacelle - Access Panel
Mod. 6/1140
(A/C 1 thru 80)

Jul 12, 1968
DHC-7 7-31-5

Flight Data Recorder System - Jumper Wire In Caution Lights System Control Box -  Special Inspection
(A/C 3 thru 53 with S.O.O. 7021 or 7110)

Oct 2, 1981
DHC-6 6/467

Autoflight - Collins Steering Computer - Replacement of Capacitor
(A/C with Collins Steering Computer 562A-5G S/N 1450 MCN1622)

Sep 17, 1984
DHC-7 7-28-2

Fuel System - Auxiliary Pump Lightning Protection - Special Inspection and Rectification
(A/C 3 thru 8)

Oct 19, 1979
DHC-7 7-53-29

Fuselage - Installation of Automatic Bilge Drain Valves
- Modification 7/2416
(A/C 1 and Sub.)

Jan 24, 1986
DHC-7 7-27-14

Flying Controls - Fore Flap Actuator Assemblies - To Improve Low Temperature Performance
- Modifications 7/1642, 7/1643 and 7/1644 (A/C 1 thru 17)

Nov 30, 1979
DHC-6 6/307

Starter Generator Attachment Clamp - Inspection and Replacement of T-Bolt
(A/C 338 to 393, Less 386, 390 and 391)

Dec 12, 1973
DHC-7 7-35-1

Portable Passenger Oxygen Cylinders - To Introduce a Brass Plug in Lieu of Nylon Plug at Filler Cap
- E.O. 70837
(A/C 3, 4, 6, 7, 9 and 10)

Jul 6, 1979
DHC-2 2/22

Main Landing Gear Compression & Rebound Rubber
Block Replacement - Modification No. 2/1533

May 27, 1977

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