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 81 - 100 of 1684

Bulletins RSS

Aircraftsort ascending S/B No. Title Original Issue Latest Issue
DHC-7 7-29-2

Wheel Brake Shuttle Valves - Installation of Filter Fittings
- Modification 7/1443
(A/C 1 thru 4, 7 and 9)

 Sep 29, 1978
DHC-7 7-55-2

Fore Rudder - Addition of Reinforcing Angles
- Modification 7/1393
(A/C 3, 4, 6, 7 and 9)

 Jan 31, 1979 May 11, 1979 'A'
DHC-7 7-27-42

Flight Controls - Improved Ground Spoiler Selector Valve
- Modification 7/2003
(A/C 1 thru 51)

 Mar 12, 1982
DHC-7 7-52-14

Rear Baggage Door - Introduction of Universal Joint at Door Strut
- Modification 7/1704
(A/C 1 thru 27)

 May 9, 1980 Jan 28, 1983 'A'
DHC-7 7-25-35

Furnishings - Floor Drain System Tubing Replacement
- Modification 7/1774
(A/C 1 thru 52)

 Jan 29, 1982
DHC-7 7-33-15

Lights - Sidewall Lighting - Introduction of Fluorescent Lights
- Modification 7/2445
(A/C 3 thru 112)

 Sep 25, 1987
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 7-32-38

Main Landing Gear - Lock Strut Actuator Assembly - Incorporation of Restrictor in UP Port
- Modification 7/2072
(A/C 1 thru 98)

 Sep 4, 1981 Nov 13, 1981 'A'
DHC-7 7-71-21

Power Plant - Replacement of Rear Fireseal Bolt
- Modification 7/2322
(A/C 3 thru 112)

 Feb 24, 1984
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 7-29-18

Hydraulic System - High Temperature -  Fairlead
Modification 7/2398
(A/C 1 thru 112)

 Nov 16, 1984
DHC-7 7-57-1

Wing Fuel Tank Access Panels - Change of Bonding Adhesive
- Modification 7/1457
(A/C 3, 4, 7 and 9)

 Oct 20, 1978
DHC-7 7-27-58

Flight Controls - Aileron and Elevator Roll and Pitch Disconnect Handle - Pull Out Load Reduction
- Modification 7/1910 (A/C 1 thru 62)

 Nov 25, 1983
DHC-7 7-52-29

Door Warning System - Improved Baggage Compartment Door Warning Switch Adjustment and Access
- Modification 7/1982
(A/C 1 thru 112)

 Mar 19, 1982 Mar 22, 1985 'B'
DHC-7 7-25-51

Equipment/Furnishings - Installation of Placard and Cutting of Hole in Fairing to Aid in Rigging of Airstair Door Mechanism
- Modification 7/2483
(A/C 1 thru 107 less 15)

 Aug 1, 1986
DHC-7 7-34-7

Avionics - Introduction of Lightweight Vertical Gyro
- Modification 7/1553
(A/C 1 thru 27 with S.O.O. 7011)

 Jun 13, 1980
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 7-32-54

Landing Gear - Nose Wheel Steering Potentiometer Self Centering Spring Installation
- Modification 7/2162 (A/C 1 thru 102)

 Mar 18, 1983
DHC-7 7-76-6

Power Plant - Introduction of Improved Propeller Reversing and Propeller Governor Push-Pull Cables
- Pratt and Whitney S/B 4053, Rev. 2
(Effectivity - See Pratt and Whitney S/B 4053, Rev. 2)

 Jul 9, 1982 Apr 29, 1983 'B'
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'

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