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 for DHC Aircraft

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 csps-tp@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 CSPS Technical Publications Coordinator at csps-tp@vikingair.com.

Displaying 161 - 180 of 1697

Bulletins RSS

Aircraft S/B No. Title Original Issuesort ascending Latest Issue
DHC-6 6/512

Horizontal Stabilizer - Special Inspection and Rectification of Centre Hinge Bracket for Cracks
(All A/C)

Oct 25, 1991
DHC-6 6/513

Horizontal Stabilizer - Special Inspection and Rectification of the Forward and Aft Attachment Brackets - Redesigned Retention Method
Mods. 6/1890, 6/1891 and 6/1892 Supersedes S/B 6/475 and Mods. 6/1855 and 6/1856
(A/C with Mods. 6/1808, 6/1809, 6/ 1855 and 6/1856. All A/C Replacing Attachment Brackets for the First Time)

Oct 25, 1991 Jul 16, 2004 'A'
DHC-7 7-71-24

Power Plant - Fuel Control Unit Drain -  Separation from Starter Generator Drain
-  Modification 7/2603
Serial Numbers 3 thru 113

Oct 25, 1991
DHC-7 A7-32-94

Landing Gear - Emergency Down Release Cables - Inspection for Corrosion and Replacement of Cable Assemblies
- Modification 7/2609 All Aircraft

Sep 3, 1991 Nov 15, 1991 'A'
DHC-7 7-24-68

Electrical Power - Special Inspection and 02 Aug 91 Rectification of AC Generator Feeder Cables for
Chafing Inside AC Contactor Boxes All aircraft

Aug 2, 1991
DHC-3 3/49

Equipment/Furnishings - Special Inspection and Rectification of Luggage Compartment Posts

Jul 19, 1991
DHC-7 7-34-41

Navigation - Aircraft Performance Limitations for Traffic Alert and Collision Avoidance System II (TCAS II) Advisory Planning
Model 102 and Model 103 Aircraft operating into or within the United States

Jul 19, 1991 Jul 1, 1994 'A'
DHC-2T 2/47

Stabilizer -Special Inspection for Cracks in the Front Spar of the Horizontal Stabilizer (and Rectification)

Jun 28, 1991 Jun 23, 2007 'E'
DHC-2 2/47

Stabilizer - Special Inspection for Cracks in the Front Spar of the Horizontal Stabilizer (and Rectification)

Jun 28, 1991 Jun 23, 2007 'E'
DHC-7 7-27-85

Flight Controls - Replacement of Flap Overspeed brake
- Modification 7/2600
(A/C 1 and Sub.)

May 10, 1991
DHC-7 7-53-32

Fuselage - Replacement of Fasteners in Nose Landing Gear Drag Strut Attachment Fittings
- Modification 7/2572
(All A/C)

Mar 15, 1991
DHC-7 7-34-40

Navigation - Installation of Structural Provisions for a Traffic Alert and Collision Assurance System (TCAS)
- Modification 7/2598
(A/C with Bendix/King, Collins or Honeywell TCAS Installations)

Jan 25, 1991
DHC-6 6/514

Communications - Installation of New Speaker
(All A/C with S.O.O. 6054 or S.O.O. 6096 (Public Address System) incorporated)

Jan 18, 1991
DHC-7 7-26-12

Fire Protection - Hand Held Fire Extinguishers - Change of Vendor
- Modification 7/2588 (A/C 3 and Sub.)

Dec 7, 1990
DHC-7 7-27-84

Flight Controls - Addition of Backing Strips to Mid Trailing Flap Seals
(A/C 1 and Sub.)

Oct 26, 1990
DHC-7 7-28-21

Fuel - Fuel Tank Drain Valve Replacement
- Modification 7/2594
(A/C 1 and Sub.)

Aug 17, 1990
DHC-7 7-23-25

Communications - Rectification of Interphone Chime to Flight Deck Audio System
- Modification 7/2595 (A/C 1 and Sub.)

Jul 13, 1990
DHC-7 7-24-67

Nacelle Longeron / D.C. External Power Ground Stud - Rework to Minimize Corrosion
-  Modification 7/2599
(DHC-7 A/C with Modification 7/2577)

Jun 29, 1990
DHC-7 7-34-38

Navigation - Ground Proximity Warning System (GPWS) - Activation of Steep Approach Adapter at 45 Degrees Flaps Only
- Modification 7/2569
(A/C 1 and Sub. with S.O.O. 7181)

Jun 15, 1990
DHC-7 7-25-61

Equipment/Furnishings - Overhead Bins -  Replacement of Doorater Assembly with a Gas Spring
-  Modification 7/2224
(A/C 3 and sub. with S.O.O. 7042)

Apr 25, 1990

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