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 241 - 260 of 1684

Bulletins RSS

Aircraft S/B No. Title Original Issue Latest Issuesort descending
DHC-7 7-24-18

A.C. Generator Control Unit Replacement
- Modification 7/1777 (A/C 1 thru 22)

Aug 15, 1980
DHC-6 6/169

Fuel System Drain Collector Tank in Engine Nacelles
Mod. 6/1165
(A/C 1 thru 230)

Dec 5, 1968
DHC-7 7-32-32

Main Landing Gear Brake Assembly
- Improved Insulator Back-Up Plate (All A/C)

Oct 24, 1980
DHC-7 7-71-15

Power Plant - Torquemeter Cylinder - Pratt and Whitney S/B 4066
(All A/C with PT6A-50 Engines Prior to Serial Number PC-E86272)

Jun 18, 1982
DHC-7 7-21 -13

Air Cycle Machine - Heat Exchanger Duct Joint Improvements
- Modification 711 783
(DASH -7 - With Heat Exchangers)

Jul 3, 1981
DHC-6 6/89

Hydraulic Filter Bowl - Alternative Wire Locking Method
(A/C 1 thru 135)

Jan 23, 1968
DHC-7 7-29-12

Hydraulic System - Engine Driven Pumps -  Installation Improved Pressure Hoses
-  Modification 7/2157
(A/C 3 thru 78)

Oct 1, 1982
DHC-6 6/425

Power Plant - Fluorocarbon Oil Seals - To Introduce P & WC S/B 1255
(All A/C)

Apr 23, 1982
DHC-7 7-56-2

Windscreen Installation - To Replace Flush Head Screws with Hex Head Screws
- Modification 7/1207 (A/C 4)

Aug 14, 1978
DHC-6 6/09

Rudder - Upper Fairing - Redesigned
Mod. 6/1013
(AIC 1 thru 6, 8 and 9)

Mar 10, 1967
DHC-6 6/345

Inboard Trailing Flap
Mod. 6/1556
(A/C 1 thru 510)

Apr 2, 1976
DHC-7 7-52-23

Airstair Door - To Improve Seal Deflation System
- Modification 7/1868 (A/C 1 thru 45 less 36)

Jun 15, 1981
DHC-7 7-25-45

Furnishings - Relocation of Crew Seat Inertia Reel Lockout Levers
- Modification 7/2388
(A/C 1 thru 97)

May 4, 1984
DHC-6 6/265

Fuel System Ejectors
Mod. 6/1392
(A/C 1 thru 310)

Oct 30, 1970
DHC-2 TB/40

Transmittal Document for Modification Bulletin T2/2065 "Turbine Inlet Temperature Indicator Range Markings" (Refer to Mod. Bulletin for Data)

Sep 3, 1971
DHC-6 6/185

Power Plant - Engine Intake Deflector System Improvements
Mod. 6/1215
(A/C 1 thru 250)

May 20, 1969
DHC-7 7-73-7

Engine Fuel and Control - Modification of Water Separator and Filter
- Bendix Corp. S/B 135a
(A/C 1 and Sub. and all PT6-50 Engines in Spares Holdings)

Mar 9, 1984
DHC-7 7-21-29

Air Conditioning - Pressurization Control - Installation of Redesigned Controller
- Modification 712602
All aircraft

Feb 5, 1993
DHC-6 6/105

Battery Installation - Pressure Venting Elimination
Mod. 6/1080
(A/C 1 thru 105)

Mar 6, 1968
DHC-7 7-30-8

Deicing System - Replacement of Deicing Tubes in Right Hand Wing
- Modification 7/1897 (A/C 1 thru 52)

Sep 4, 1981

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