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 61 - 80 of 1694

Bulletins RSS

Aircraft S/B No. Title Original Issue Latest Issuesort descending
DHC-7 7-71-13

Power Plant - Introduction of Improved Power Turbine Blades -  Pratt and Whitney S/B 4064R1
(Effectivity - See Pratt and Whitney S/B 4064R1)

Feb 12, 1982
DHC-6 6/54

Navigation Lights - Wing Tip Indicator
Mod. 6/1024
(A/C 1 thru 14)

Oct 13, 1967
DHC-6 6/280

Air Conditioning Compartment - To Improve Sealing
(A/C 1 thru 330)

Jul 30, 1971
DHC-7 7-55-10

Stabilizers - Installation of Water Deflector Over Elevator Servo Assembly
- Modification 7/2605
All Aircraft

Oct 25, 1991
DHC-3 3/33

Float Installation Drain Tube Assembly - Installation Check

Nov 4, 1977
DHC-6 6/428

Power Plant - To Introduce Second Stage Reduction Planet Gear Bearings Without Centre Groove and Shafts with Pressure Flat - to introduce P & WC
S/B 1258
(All A/C)

Apr 30, 1982
DHC-6 6/429

Power Plant - Second Stage Reduction Planet Pins Incorporating Oil Separators - To Introduce P & WC S/B 1263
(All A/C)

Apr 12, 1982
DHC-6 6/133

Propeller Reversing Control - Revised Warning System
Mod. 6/1139
(A/C 1 thru 116)

May 4, 1968
DHC-7 7-32-89

Landing Gear - Nose Gear Shock Strut Assembly - Upper Bearing Replacement
- Modification 7/2557
(A/C 1 thru 111)

Sep 2, 1988
DHC-2 2/13

Not applicable

DHC-6 6/377

Hydraulic Pump Power-Off Warning Light - To Relocate
Mod. 6/1654
(A/C 1 thru 594)

Sep 8, 1978
DHC-7 7-25-26

Furnishings - Sherwood Toilet Unit -  Overflow Tray Installation
-  Modification 7/1485 (A/C 1 thru 14)

Apr 17, 1981
DHC-7 7-82-3

Water Methanol System - Replacement of Tank Quantity Transmitter
-  Modification 7/1532
(A/C 4, 6 and 9)

May 23, 1980
DHC-7 7-57-10

Wing Structure - Flight and Ground Spoilers Hinge Arms and Shroud Seals
-  Change of Seal Material
-  Modification 7/1376 (A/C 3 thru 27)

Nov 20, 1981
DHC-7 7-22-13

Auto Flight - Auto Pilot Disconnect Audible Alerter - Change of Power Source - Modification 8/2578
(A/C with S.O.O. 7186)

Jan 20, 1989
DHC-7 7-53-1

Front Fuselage - Provision for Static Port Tester
- Modification 7/1254
(A/C 1, 2 and 4)

Apr 14, 1978
DHC-6 6/445

Main Landing Gear Wheels - Wheel Bearing Bore Datum Reference and Tolerance and Checking of Wheel Fasteners Tie Bolts and Nuts
(All A/C)

Aug 12, 1983
DHC-7 A7-32-15

Main Landing Gear - Emergency Extension System - Special Inspection
(A/C 1 thru 15)

Nov 26, 1979
DHC-7 7-52-1

Baggage Door - To Introduce Door Open Warning Microswitch to Handle
- Modification 7/1336
(A/C 4)

May 26, 1978
DHC-7 7-27-49

Flight Controls - Rework of Upper Aft Rudder
- Modification 7/2141
(A/C 3 thru 112)

May 13, 1983

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