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 1683

Bulletins RSS

Aircraftsort ascending S/B No. Title Original Issue Latest Issue
DHC-7 7-52-35

Doors - Lower Airstair Door - Special Inspection, Rigging Check and Rectification of Door Locking Mechanism
(A/C 1 thru 112)

May 16, 1986
DHC-7 7-25-57

NOT ISSUED

DHC-7 7-34-13

Attitude Director Indicator - Improved Type
- Modification 7/1726
(A/C 1 thru 29)

Sep 11, 1981
DHC-7 7-24-46

Electrical - Flight Compartment Overhead Circuit breaker Panel Illumination -  Interchange of Control
-  Modification 7/1940 (A/C 3 thru 72)

Aug 13, 1982
DHC-7 7-32-60

Landing Gear - Main Wheel Brake Anti- Skid Hydraulic Line
- Special Inspection and Rerouting
- Modification 7/2314
(A/C Serial Numbers 3 thru 86, 89, 91, 94 and 95)

Oct 28, 1983
DHC-7 7-76-12

Engine Controls - Nacelles - New Fireseal Installation of Control Cable Penetrations in Firewall
- Modification 7/2519
(A/C 3 thru 107)

Nov 14, 1986
DHC-7 7-22-11

Auto Flight - Auto Pilot Controller Incorporation of Time Delay
- Modification 7/2390
(A/C 3 thru 97 and 101 thru 104)

Jan 18, 1985 Jun 28, 1985 'A'
DHC-7 7-30-20

Ice and Rain Protection - Propeller Deicing System Current Sensing Indication
- Modification 7/2374
(A/C 1 thru 112)

Mar 22, 1985
DHC-7 7-57-23

Wings - Reinforcement of Inboard Trailing Flap Fairing Attachment Areas
- Modification 7/2302
(A/C 3 thru 82)

Jul 6, 1984
DHC-7 7-27-80

Flight Controls - Replacement or Rework of Roll Spoiler Unloading Valves
- Modification 7/2486
(A/C 3 and Sub.)

Aug 25, 1989
DHC-7 7-53-15

Flap Control System - Inspection for Cracking and Strengthening of Lower Surface of Flap Track No. 1
- Modification 7/1792
(A/C 1 thru 23)

Nov 7, 1980 Nov 27, 1981 'A'
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 A7-34-29

Navigation - Pitot Head Replacement
- (A/C 86, 89, 91, 94 and 95 and any others which have retrofit of Modification 7/2233 installed)

Jan 6, 1984
DHC-7 7-24-62

Electrical Power - Additional Bus Bars Installation
- Modification 7/2515
(A/C with Modification 7/2254)

Aug 29, 1986
DHC-7 7-32-76

Main Landing Gear - Wheel Assembly
- Procedure for Lubtork of Tie Bolts, Washers, Nuts and Wheel Painting (A/C with Wheel Assembly 3-1354)

Oct 4, 1985
DHC-7 7-79-6

Oil - Oil Cooler Drain Valve Replacement
-  Modification 7/2409
(A/C 1 thru 112)

Jun 28, 1985
DHC-7 7-23-7

Communications - Improved to Cockpit Voice Recorder Tape Circuits
(All A/C with Sundstrand Voice Recorder Installed)

May 8, 1981
DHC-7 7-31-7

Communications - Cockpit Voice Recorder
-  Rework to Prevent Loss of Input
- S.O.O. 7141
(A/C 54, 62 and 66)

Apr 8, 1982
DHC-7 7-57-39

NOT ISSUED

DHC-7 7-11-12

Avionics - Emergency Locator Transmitter Battery - Installation of Label
- Modification 7/1742
(A/C 1 thru 22)

Nov 7, 1980

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