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 1 - 20 of 1683

Bulletins RSS

Aircraft S/B No.sort ascending Title Original Issue Latest Issue
DHC-7 V7-57-01

Fuel System - Fuel Tank Pressure Relief Valve Removal of Protective Coating- SFAR Compliance - Modification No V7-M5701 (All Aircraft)

Jul 19, 2007 Sep 18, 2009 'B'
DHC-7 V7-54-02

Cracks in Engine Outboard Nacelles Upper Longerons

Dec 14, 2012
DHC-7 V7-54-01

Main Undercarriage Frame Strut Replacement
- Mod 7/2801

Jun 4, 2012
DHC-7 V7-33-01

DHC-7 - Fluorescent Light System Overheating - Ballast Replacement

Feb 28, 2008
DHC-7 V7-28-05

Fuel System - Fuel System Bonding Jumpers and Conductive Fittings - SFAR 88 Compliance

Oct 12, 2007 Sep 18, 2009 'A'
DHC-7 V7-28-04

Fuel System - Fouling Condition Between AN-815 Fitting and the Fuel Probe Wiring Conduit - SFAR 88 Compliance

Aug 16, 2007 Sep 18, 2009 'B'
DHC-7 V7-28-03

Fuel - Refuel/Defuel - Wiring Change at Refuel/Defuel Panel for Pressure Relief Valve (PRV) - SFAR 88 Compliance

Oct 12, 2007 Sep 18, 2009 'A'
DHC-7 V7-28-02

Fuel - Refuel/Defuel - Wiring Change at Refuel/Defuel Panel for Pressure Relief Valve (PRV) - SFAR 88 Compliance

Oct 1, 2007 Sep 18, 2009 'A'
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 V7-27-02

Solenoid Valve Second Stage Flap Dump - Screw Replacement

Oct 18, 2007
DHC-7 V7-27-01

Solenoid Valve Flight Spoiler Servo Unloading - Screw Replacement

Oct 18, 2007
DHC-6 V6/542

Wing - Removal of Wing Front Spar (P/N C6WM1027-1) and replace with (P/N C6WM1027-3)

Oct 1, 2007
DHC-6 V6/541

Wing - Front Spar Adapter Assembly (P/N C6WM1027- 1) - Installation of Inspection Holes in Lower Wing Skin
(All A/C)

Oct 1, 2007
DHC-6 V6/540

Wing - Front Spar Adapter Assembly (P/N C6WM1027-1) - Inspection for Cracks
(All A/C)

Oct 1, 2007
DHC-6 V6/0062

STA 270.3 Pulley Replacement

Jul 31, 2017 Jul 31, 2017
DHC-6 V6/0060

Recall of C6US1015-27 Axle, Main Wheel-Ski 

Oct 17, 2016 Oct 17, 2016
DHC-6 V6/0059

Guard Assembly, Airstair Door Inner Handle - Design Improvements

Oct 26, 2016 Oct 26, 2016
DHC-6 V6/0058

Engine Controls - Binding of the FCU Push Rod End Bearings

For Legacy Twin Otter Series

Dec 23, 2015 Dec 23, 2015
DHC-6 V6/0057

Engine Controls -Binding of the FCU Push Rod End Bearings

Nov 27, 2015 Nov 27, 2015
DHC-6 V6/0056

Incorporation of MOD 6/2380 - Red Fuel Emergency Shut-Off Switches 

Jun 7, 2016

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