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 for DHC Aircraft

Manual Status List – DHC-2 to DHC-7

To obtain a subscription to a digital library, please contact ATP:

For more information on digital technical publications, please contact csps-tp@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 CSPS Technical Publications Coordinator at csps-tp@vikingair.com.

Displaying 141 - 160 of 1697

Bulletins RSS

Aircraftsort ascending S/B No. Title Original Issue Latest Issue
DHC-7 7-33-2

Emergency Aisle Light Cover Assemblies - Change of Material
-  Modification 7/1303
(A/C 1, 2 and 4)

Jun 2, 1978
DHC-7 7-55-10

Stabilizers - Installation of Water Deflector Over Elevator Servo Assembly
- Modification 7/2605
All Aircraft

Oct 25, 1991
DHC-7 7-30-23

Ice and Rain Protection - Snow Separator Actuator - Introduction of Improved Actuator
- Modification 7/2422
(A/C 3 thru 112)

Aug 1, 1986 Sep 2, 1988 'A'
DHC-7 7-27-22

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

Jun 20, 1980
DHC-7 7-24-24

Addition of Diode to Outboard Roll Spoiler Solenoid Circuit
- Modification 7/1373 (A/C 15 thru 22)

Sep 12, 1980
DHC-7 7-27-83

Nacelles - Number 2 and Number 3 Flap Track Attachment brackets Replacement
- Modifications 7/2590 and 7/2592 All Aircraft

Mar 20, 1992 Jul 30, 1999 'A'
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 7-21-19

Air Conditioning - Low Pressure Bleed Check Valve - Replacement
- Modification 712239
(A/C 1 thru 102)

Mar 25, 1983 May 20, 1983 'A'
DHC-7 7-52-16

Cargo Door Actuating Pushrod Shear Pin -  To Replace
-  Modification 7/1583
(A/C 7, 9, 10, 11 and 12)

Apr 18, 1980
DHC-7 7-79-6

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

Jun 28, 1985
DHC-7 7-33-18

Lights - Anti-Collision Strobe Lights
-  Power Supply Replacement
-  Modification 7/2522
(A/C with S.O.O. 7060)

Mar 20, 1987
DHC-7 7-57-9

Wing Structure - Spoiler Hinge Arm and Drain Seals - Change of Seal Material
- Modification 7/1683
(A/C 3 thru 27)

Nov 20, 1981
DHC-7 7-52-37

Doors - Airstair Door Sill - Introduction of Overboard Drain Valve
- Modification 7/2514
(A/C 3 thru 110)

Sep 1, 1986
DHC-7 7-31-10

Indicating and Recording - Flight Data Recorder - Rework Caution Light Circuit
- Modification 7/2523
(A/C 3 and Sub.)

Mar 20, 1987 Dec 1, 1989 'B'
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 7-24-40

Electrical Power - Lucas A.E. 2132 MK4 A.C. Generator - Introduction of New Rotor and Fan Assembly
(All DHC-7 A/C with Lucas A/C Generator A.E. 2132 MK4 Installed)

Feb 19, 1982
DHC-7 7-28-7

Fuel System - Recalibration of Magna Stick Fuel Contents Indicators
- Modification 7/1790
(A/C 1 thru 52)

Mar 13, 1981 Oct 2, 1981 'A'
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 7-22-5

Autopilot System - Aileron Servo Motor Installation - Special Inspection
- Modification 7/2315
(A/C 3 thru 83, 85, 86 and 89 with S.O.O. 7017)

Oct 29, 1982 May 20, 1983 'B'
DHC-7 7-34-10

Avionics - ADF Sense Antenna
-  Installation of Mast Gaskets
-  Modification 7/1799
(A/C 1 thru 47 with S.O.O. 7004)

Apr 10, 1981

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