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 161 - 180 of 1684

Bulletins RSS

Aircraft S/B No. Title Original Issue Latest Issuesort descending
DHC-2 TB/23

Fuel System - Fuel Cell Gaskets - Replacement

Apr 29, 1968
DHC-7 7-24-17

Proximity Switch Rework - To Prevent Ingress of Moisture
(A/C 1 and Sub. as required)

Sep 5, 1980
DHC-6 6/168

Airstair and Cargo Door - Improved Handle Guard, Handle and Ashtray/Knee Guard
Mod. 6/1183
(A/C 1 thru 170)

Nov 26, 1968
DHC-7 7-32-31

Main Landing Gear - Drag Strut Bearing Housing Installation - Special Inspection and Rectification
(A/C 1 thru 23)

Oct 10, 1980
DHC-6 6/504

Landing Gear Main Gear Wheel Brakes - Introduction of Asbestos-Free Linings
Mod. 6/1885
(A/C with Brake Assembly P/N 9550377-1 Installed)

Oct 7, 1988
DHC-7 7-71-14

Power Plant - Compressor Turbine Vane Ring -  Pratt and Whitney S/Bs 4069 and 4061
(Effectivity - See Pratt and Whitney S/Bs 4069 and 4061)

Feb 19, 1982
DHC-7 7-21-12

Cabin Pressurization Control and Drainage System - To Overcome Freezing in Severe Cold Conditions
- Modification 711 652
(A/C 1 thru 39)

Mar 20, 1981
DHC-6 6/88

Flap/Elevator - Trim Cables - Nylon Cover Introduction
Mod. 6/1127
(A/C 1 thru 95)

Jan 24, 1968
DHC-7 7-29-11

Hydraulic System - Rudder Actuator -  Installation of Heavier Wall Pressure Tube Assembly on Vertical Stabilizer
-  Modification 7/2236
(A/C 21 thru 73 less 53, 58, 68 and 71)

Apr 23, 1982
DHC-6 6/424

Power Plant - Improved Compressor Bleed Valve Assembly - To Introduce P & WC S/B 1251
(A/C 231 and Sub.)

Apr 23, 1982
DHC-6 6/08

Voltage Regulator - lntroduction of Improved
Mod. 6/1017
(A/C 1 thru 20 and 22)

Mar 10, 1967
DHC-6 6/344

Static Selector Valve Replacement
Mod. 6/1506
(A/C 1 thru 490)

Mar 5, 1976
DHC-6 6/264

Air Speed Indicator and Operating Instructions Placard
Mod. 6/1291
(A/C 231 thru 270)

Nov 20, 1970
DHC-7 V7-33-01

DHC-7 - Fluorescent Light System Overheating - Ballast Replacement

Feb 28, 2008
DHC-6 V6/0054

Not Issued

DHC-2 TB/39

PT6-6 & -20 Engine Compressor Inlet Screens-Icing Restrictions

Jul 15, 1971
DHC-7 7-24-33

Electrical System - To Introduce Lever Lock Switches for Master Control on A.C. Control Panel Assembly
- Modification 7/1896
(A/C 1 thru 52)

Sep 11, 1981
DHC-6 6/184

Wheel - Skis Main - Installation of Torsion Spring Trim
Mod. 6/1236
(All A/C)

Sep 18, 1969
DHC-7 7-32-47

Nose Landing Gear - Downlock Mechanism Improvement
- Modification 7/2243
(A/C 3 thru 112)

Aug 20, 1982
DHC-6 6/520

Air Conditioning - Cockpit Cooling - Fan Replacement
- Mod 6/1897
(All A/C)

Jun 18, 1997

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