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 41 - 60 of 1684

Bulletins RSS

Aircraftsort ascending S/B No. Title Original Issue Latest Issue
DHC-7 7-61-18

Propellers - Installation of Metal Sheathing to Blades and Spinners
- Modification 7/2476
(All A/C with S.O.O. 7131)

Nov 15, 1985
DHC-7 7-11-32

Placards and Markings - Caution Labels for Cargo Door
- Modification 7/2465
(A/C 7, 9 thru 12, 20, 23, 31, 63, 72, 75, 81, 86, 94, 100, 104, 105 and 106)

Sep 13, 1985
DHC-7 V7-28-01

Fuel System - Fuel Probe Wiring Conduit Clamps - SFAR Compliance
- Modification No. V7-M2801

Aug 2, 2007 Sep 18, 2009 'B'
DHC-7 7-54-17

Nacelles - Inboard Nacelles - Main Landing Gear Door Mechanism Spigot Replacement
- Modification 7/2538
(A/C 3 thru 27)

Apr 17, 1987
DHC-7 7-27-36

Flight Controls - Control Column Forward Sealing Plate Assembly - Inspection and Rectification - DHC E.O. 72195
(A/C 3 thru 53, 55, 56, 57 and 59)

Nov 6, 1981
DHC-7 7-52-8

Rear Emergency Door - Installation of Restraining Bracket and Guard Assembly
- Modification 7/1316
(A/C 1 thru 4 and 7)

Oct 25, 1979 Dec 12, 1980 'A'
DHC-7 7-25-29

Furnishings - Toilet Door Lock Mechanism Rework
- Modification 7/2063
(A/C 3 thru 52 less 51)

Nov 6, 1981
DHC-7 7-33-9

Baggage Compartment Lights - Door Switch Control
- Modification 7/2064
(A/C 1 thru 92)

Jul 9, 1982
DHC-7 7-24-18

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

Aug 15, 1980
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-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-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-7 7-27-52

Flight Controls - Replacement of Trailing Flap Potentiometer with Fixed Resistors
- Modification 7/2093
(A/C 3 thru 89 and 91)

Apr 15, 1983 Mar 20, 1987 'B'
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-7 7-34-1

Flight Data Recorder - Addition and Revision to Circuitry
- Modification 7/1261
(A/C 1, 2 and 4)

Apr 20, 1979 May 28, 1979 'A'
DHC-7 7-24-34

D.C. Generator Control Unit - Additional Ground Installation
- Modification 7/2000
(A/C 3 thru 65 with units U13866/2 or U13866/3)

Sep 11, 1981 Jun 18, 1982 'A'
DHC-7 7-32-48

Main Landing Gear - Undercarriage Emergency Release Bracket
- Modification 7/1832
(A/C 1 thru 72)

Oct 1, 1982 Jul 31, 1987 'B'

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