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 61 - 80 of 1684

Bulletins RSS

Aircraft S/B No. Title Original Issue Latest Issuesort descending
DHC-6 V6/0015

Drain Hole Modifications for Cockpit Doors

Apr 6, 2011
DHC-7 7-92-3

Components Installed in de Havilland Aircraft of Canada Limited (DHC) Products
(A/C 1 & Sub.)

Aug 31, 1984
DHC-7 7-23-16

Communications - Audio Control Panel -  Total Audio Recording Provision
-  Modification 7/2283
(All DHC-7 A/C with Cockpit Voice Recorder S.O.O. 7022 Installed)

Feb 4, 1983
DHC-6 6/142

Fuel System - Enlarged Filler Neck - Introduction
Mod. 6/1088
(A/C 6 thru 108)

May 27, 1968
DHC-7 7-32-5

Main Landing Gear Door Mechanism -  To Increase Strength at Torque Tube Centre Bellcrank/Push Rod Attachment
-  Modification 7/1455 (A/C 3 thru 12)

Mar 9, 1979
DHC-7 7-61-7

Propellers - Blades - Erosion Protection of Heater Leading Edge
-  Hamilton Standard S/B 61-1026
(Effectivity - See Hamilton Standard S/B 61-1026)

Oct 9, 1981
DHC-7 7-11-21

Hydraulic Reservoir - Label Change - To Prevent Overfilling
- Modification 7/1915
(A/C 3 thru 92)

Oct 2, 1981
DHC-6 6/62

Intake Deflector/Snow Separator Operating Instructions
(All A/C)

Nov 9, 1967
DHC-6 6/398

Removal of Propeller Blade Latches
Mod. 6/1716
(A/C 1 thru 615 Landplanes)

Oct 10, 1980
DHC-7 7-54-6

Inboard Nacelles - Introduction of Trough to Debris Guard
- Modification 7/1388 (A/C 1, 2, 3 and 4)

May 4, 1979
DHC-3 3/41

Non-approved Components and Installations

Mar 30, 1984
DHC-7 7-39-5

Flight Controls - Stall Warning Computer Replacement
- Modification 7/1551
(A/C 1 thru 27)

May 15, 1981
DHC-2 2/33

Not applicable

DHC-7 7-32-101

Landing Gear - Extension and Retraction
-  Replacement of the Downlock Microswitch Actuating Lever on Nose Landing Gear -
Modification 7/2616
Serial Numbers 3 thru 113

Nov 15, 1993
DHC-6 V6/0031

Pitot Head - Increased Corrosion Protection

Mar 14, 2013
DHC-7 7-24-7

Airframe De-Ice and Indication System Inspection for Correct Termination of Tail Switches De-Ice Distribution Valve Pressure
- Special Inspection (A/C 3, 4, 6, 7, 9 and 10)

Jun 1, 1979
DHC-2 TB/14

PT6A-6 & PT6A-20 Engine Vibration Isolators - Replacement

Feb 7, 1968
DHC-7 7-24-8

Electrical System - External Power Connector and Limiter - Introduction of Copper Bus Bars
- Modification 7/1472 (A/C 1 thru 12)

Jun 22, 1979
DHC-6 6/159

Nosewheel Steering - Operating Cable - Double Shank Swaged Ball - Introduction
Mod. 6/1164
(A/C 1 thru 170)

Sep 12, 1968
DHC-7 7-32-22

Main Landing Gear - Lower Drag Strut
-  Menasco S/B 32-19
(A/C 1 thru 22 if Drag Strut not Stamped SB 32-19 as shown in Menasco S/B 32-19)
-  Special Inspection for Clearance

Apr 11, 1980

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