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 61 - 80 of 1683

Bulletins RSS

Aircraft S/B No. Title Original Issue Latest Issuesort descending
DHC-6 V6/540

Wing - Front Spar Adapter Assembly (P/N C6WM1027-1) - Inspection for Cracks
(All A/C)

Oct 1, 2007
DHC-7 7-22-18

Not issued

DHC-6 6/124

Rudder Trim Tab - Redesigned to Prevent Distortion Due to Handling
Mod. 6/1124
(A/C 1 thru 170)

Apr 1, 1968
DHC-7 7-30-27

Ice and Rain Protection - Introduction of Corrosion Protection Between Ice Shields and Fuselage
- Modification 7/2556
(A/C with S.O.O. 7161)

Dec 4, 1987
DHC-7 7-11-3

First Aid Kit - Installation of New Label
- Modification 7/1291 (A/C 1, 2 and 4)

May 6, 1978
DHC-6 6/44

Pitot/Static System - Rework to Prevent Water Ingress
Mod. 6/1065
(A/C 1 thru 59)

Aug 22, 1967
DHC-7 7-27-87

Flight Controls - Flap Indication System Changes
- Modification 7/2604
Serial Numbers 003 thru 113 except 33, 50, 77, 109 and 110 with Customer Special Installation 78358

Jun 12, 1992
DHC-7 7-53-22

Front Fuselage - Sealing of Gaps in Flight Compartment
- Modification 7/1959
(A/C 1 thru 62)

Sep 10, 1982
DHC-7 7-53-23

Fuselage - Additional Drainage Holes in Lower Fuselage
- Modifications 7/2270 and 7/2308
(A/C 1 thru 92 for Modification 7/2270, A/C 1 thru 99 for Modification 7/2308)

Sep 30, 1983
DHC-3 3/24

Transmittal Document - Modification Bulletin 3/914 - Fire Warning Light Replacement

Mar 14, 1975
DHC-7 7-34-37

Navigation - Radio Altimeter (RAD ALT) -  Installation of Isolation Diode in Decision Height Annunciation Circuit
-  Modification 7/2579
(A/C with S.O.O. 7182)

Mar 10, 1989
DHC-2 2/16

CANCELLED

DHC-7 7-25-1

Cabin Overhead Stowage Bins - Doorater
- Modification 7/1310
(A/C 4)

May 12, 1978
DHC-7 7-32-84

Landing Gear - Main Landing Gear Drag Struts - Introduction of Plugs in Uplock Rigging Holes
- Modification 7/2537
(A/C 3 and Sub.)

Feb 6, 1987
DHC-6 V6/0014

Instructions For Re-labeling DHC-6 Elevator Using Authorized Data Plate
(S/N 845 and 846)

Apr 6, 2011
DHC-7 7-92-2

Insulating Diode with Metallic End Cap (Effectivity - See Sperry Technical Newsletter 29-9000-03)

Nov 28, 1980
DHC-7 7-23-15

Communications - Passenger Address System - Addition of P.A. Side Tone Flight Deck Headsets
- S.O.O. 7153
(A/C 3 and Sub. with S.O.O. 7026) (Forward Observer's Seat - Flight Compartment Installed)

Jan 24, 1983
DHC-6 6/141

Cabin Window Shades - Commuter A/C - Improved Handle
Mod. 6/1149
(A/C 1 thru 135)

May 24, 1968
DHC-7 7-32-4

Nose Landing Gear - To Add Protective Cover to Weight Switches
- Modification 7/1309
(A/C 1, 2 and 4)

Nov 22, 1978
DHC-6 6/477

Cabin Roof - Escape Hatch Installation - E.O. 68397
(A/C 231 and Sub. with S.O.O. 6001)

Nov 22, 1985

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