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


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 141 - 160 of 1684

Bulletins RSS

Aircraft S/B No. Title Original Issue Latest Issuesort descending
DHC-7 7-34-12

Navigation - AA200 Radio Altimeter System - To Improve Reliability of the RT220/221 Radio Altimeter
(A/C 1 and Sub.)

Aug 21, 1981
DHC-2T 2/49

Not Applicable

DHC-2 TB/51

Cherrymax Rivets, Riveters & Pulling Heads - Conversion from Cherrylock Riveters

Oct 1, 1980
DHC-7 7-24-45

Electrical Power - Lucas A.C. Generator AE2132 MK3 and MK4 - To Introduce Washer Between Tail End Bearing and Cupwasher (MK4) and to Introduce New Cupwasher (MK3) - Lucas Aerospace Modifications 5176 and 5170CG
(A/C with A.C. Generator AE2132 MK3 or MK4)

Jun 25, 1982
DHC-6 6/532


DHC-7 7-76-11

Engine Controls - Cables - Installation of Turnbuckles in Wing Leading Edge
- Modification 7/2418
(A/C 1 and Sub.)

Apr 11, 1986
DHC-6 6/116

Snow Separator - Fouling of Pneumatic Pipes
(A/C 1 thru 30)

Mar 15, 1968
DHC-6 6/452

Floats - Introduction of Steel Front Spreader Spreader Bar Attachment Fittings and Bearing Retention Plates
Mods. 6/1657 and 6/1786
(All A/C with S.O.O. 6002 or 6082)

Mar 23, 1984
DHC-7 7-57-22

Wings - Vortex Generator Replacement
- Modification 7/2358
(A/C 1 thru 112)

May 11, 1984
DHC-6 6/36

Landing Gear Main - Prevention of Rebound Bolt Vibration
Mod. 6/1031
(A/C 1 thru 17)

Jul 10, 1967
DHC-7 7-27-79

Flight Controls - Introduction of Improved Ground Spoiler Selector Valve No. 2
- Modification 7/2485
(A/C 3 and Sub.)

Mar 24, 1989
DHC-6 6/372

Nose Landing Gear - Improved Fork Nut Lock
Mod. 6/1618
(A/C 1 thru 572)

May 5, 1978
DHC-7 7-53-14

Airstair Door - Replacement of Pressure Stop Wear Plates
- Modification 7/1870
(A/C 1 thru 27)

Sep 26, 1980
DHC-3 3/15

Engine Compartment Fire Extinguisher - Introduction of Graviner Type 161A

Feb 10, 1971
DHC-6 6/292

Propeller Deicing Boots
Mod. 6/1441
(A/C 1 thru 350 with Prop Deicing)

Oct 25, 1972
DHC-7 7-34-28

Navigation - Primus 400 Coloured Weather Radar Receiver Transmitter Part Number Change - Modification 7/2287
(All A/C with S.O.O. 7007-2
RCA Primus 400 Colored Weather Radar)

Sep 30, 1983
DHC-6 V6/0056

Incorporation of MOD 6/2380 - Red Fuel Emergency Shut-Off Switches 

Jun 7, 2016
DHC-2 2/07

Engine Compartment Fire Extinguisher - Introduction of Graviner Type 161A

Feb 9, 1971
DHC-7 7-32-75

Landing Gear - Main Gear Brakes - Pin and Klip Ring Replaced with Lock Nut Arrangement
(A/C 1 and Sub. less Series 150 A/C)

Sep 13, 1985
DHC-6 V6/0005