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 141 - 160 of 1684

Bulletins RSS

Aircraftsort ascending S/B No. Title Original Issue Latest Issue
DHC-7 7-11-18

Labels - Additional Requirements for the Airstair Door, Emergency Exit, Toilet and Baggage Compartment
- Modification 7/1872
(A/C 1 thru 39)

Apr 3, 1981
DHC-7 7-28-10

Fuel System - Rework of Left and Right Hand Centre Wing Box Drain Valves
- Modification 7/2071
(A/C 28 thru 53 without DHC S.O.O. 7061)

Nov 13, 1981
DHC-7 7-54-3

Nacelles - To Reinforce Fire Extinguisher Bottle Support Structure
- Modification 7/1332
(A/C 1, 2 and 4)

Nov 20, 1978
DHC-7 7-27-22

Elevator Trim Handwheel - Improved Retaining Bolt
- Modification 7/1753
(A/C 1 thru 18)

Jun 20, 1980
DHC-7 7-39-2

Turn and Slip Indicator - To Delete `4 Min. Turn' from Face of Indicator
- Modification 7/1526
(A/C 1 thru 12)

Dec 7, 1979
DHC-7 7-25-15

Furnishings - Installation of Protective Lens for Under Wing Bins Lighting
- Modification 7/1668 (A/C 1 thru 23)

Jan 9, 1981
DHC-7 A7-32-98

Landing Gear - Extension and Retraction - Special Inspection of Downlock Microswitch Actuating Lever on Nose Landing Gear
Serial Numbers 3 thru 113

Jan 29, 1993
DHC-7 7-24-4

Powered Flight Control Shut-off Switches Replacement
- Modification 7/1301 (A/C 1, 2 and 4)

Jun 23, 1978
DHC-7 7-32-18

Main Landing Gear - Upper Drag Strut
- Special Inspection (A/C 1 thru 27)

Feb 6, 1980 Oct 1, 1982 'C'
DHC-7 A7-71-1

Power Plant - Propeller Engine Interface Fretting - Special Inspection
(A/C 1 thru 4, 7 and 9 Total Time in Excess of 1,000 Flight Hours)

Dec 15, 1978
DHC-7 7-11-34

Placards and Markings - Addition of Emergency Notification Label - Flight Data Cockpit Voice Recorders
- S.O.O. 7179
(A/C 1, 2, 3, 6, 7, 8, 12, 21, 26, 30, 36, 57, 64, 74 and 80)

Oct 17, 1986
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 7-54-19

Nacelles - Inboard - Lower Longeron, Upper Half - Special Inspection for Corrosion, Rectification and Incorporation of Modification 7/2731
Serial Numbers 004 thru 113 excluding
Serial Numbers 037 and 061

Jan 2, 1998 Apr 16, 1999 'C'
DHC-7 7-27-38

Flight Controls - Flight Spoiler Servo Unloading Valve Replacement
- Modification 7/1733
(A/C 1 thru 72)

Nov 26, 1982 Jun 10, 1983 'A'
DHC-7 7-52-10

Airstair Door - Spring Power Assembly Replacement
- Modification 7/1543
(A/C 1 thru 25 and 27)

Oct 4, 1979 Jun 5, 1981 'B'
DHC-7 7-25-31

Improved Retaining Pin - Forward Observer's Seat
- Modification 7/1559 (A/C 5 with S.O.O. 7026)

Oct 9, 1981 Nov 27, 1981 'A'
DHC-7 7-33-11

Lights - Wing Tip Dual Position Light
-  Installation
-  Modification 7/2147
(A/C 003 thru 092, 094 and 095)

Mar 25, 1983 Jan 27, 1984 'A'
DHC-7 7-24-20

Electric - D.C. Generator Control Unit Replacement
- Modification 7/1759 (A/C 1 thru 24)

Jul 4, 1980
DHC-7 7-32-34

Nose Landing Gear - Shock Strut Assembly -  Lubrication of Upper Roller Bearing and Rework of Inner Cylinder
-  Modification 7/1935
(A/C 1 and Sub. with Nose Landing Gear Serial Numbers 001 thru 036)

Jan 9, 1981 Aug 14, 1981 'A'
DHC-7 7-71-17

Power Plant - Electrical Cable Assembly and Connectors Replacement
- Modification 7/2196
(A/C 1 thru 112)

Sep 24, 1982 Apr 18, 1984 'C'

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