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 1621 - 1640 of 1684

Bulletins RSS

Aircraftsort descending S/B No. Title Original Issue Latest Issue
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'
DHC-7 7-30-14

Deicing System - Stall Bar Installation to Deicing Boot Using Interfacing Strip
(A/C 3 thru 112)
(Modification 7/2240 will be incorporated on A/C Serial Number 113 and Sub.)

Oct 28, 1983
DHC-7 7-57-17

Wing Fuel Tank Covers - Special Inspection and Replacement
- Modification 7/2377 and 7/2378
(A/C 3 thru 27)

Oct 12, 1983 Dec 14, 1984 'B'
DHC-7 7-27-74

Flight Controls - Roll Spoiler Actuator Unload Valve Replacement
- Modification 7/2458
(A/C 3 and Sub.)

Jan 17, 1986
DHC-7 7-53-9

Centre Fuselage - To Reinforce Longeron at Rear Spar Frame
- Modification 7/1622 (A/C 1 thru 14)

May 23, 1980 Sep 10, 1982 'B'
DHC-7 7-26-6

Fire Protection - Fire Detection System Flexible Cable Connector Replacement (A/C 1 and Sub.)

Oct 19, 1984
DHC-7 7-34-23

Navigation - Radio Altimeter - Transmitter/ Receiver - Introduction of New Model
- Modification 7/2083
(A/C 3 thru 92 with S.O.O 7009 Radio Altimeter Installation)

Apr 29, 1983
DHC-7 7-24-56

Electrical Power - Wing Root and Flap Shroud Electrical Conduits - Special Inspection for Chafing of Wiring Insulation (A/C 3 thru 97)

Apr 19, 1984
DHC-7 7-32-70

Landing Gear - Installation of Protective Boots to Main and Nose Landing Gear Weight Switch Connectors (Supersedes Modifications 7/2197 and 7/2316)
- Modifications 7/2417 and 7/2421
(A/C 3 thru 122)

Feb 8, 1985 Nov 22, 1985 'B'
DHC-7 7-78-3

Exhaust - Engine Exhaust Duct Fairing
-  Improved Method of Attachment
-  Modification 7/2462
(A/C 3 & Sub. with Modification 7/2187)

Oct 11, 1985
DHC-7 7-23-1

Audio Integrating Systems - Wiring Revision
- Modification 7/1262
(A/C 1, 2 and 4)

Sep 29, 1978
DHC-7 7-31-1

Flight Data Recorder System - Inspection and Removal of Redundant Wire
(A/C 1 thru 20 and 22)

May 30, 1980
DHC-7 7-57-33

Wings - Special Inspection and Removal of Fuel Tank Foam Wedge Blocks
- Modification 7/2586 and 7/2587
(A/C 1 thru 27 less 11 without Modification 7/1367)

Jul 21, 1989 Apr 26, 1991 'B'
DHC-7 7-11-6

Cargo Door - To Add Caution Label
- Modification 7/1470 (A/C 7 and 9)

Feb 23, 1992
DHC-7 7-27-90

Flight Controls - Ground Spoilers - Installation of In-Line Filters in Hydraulic Pressure Hoses
- Modification 7/2741
Serial Numbers 003 thru 113

Sep 3, 1999
DHC-7 7-53-25

Fuselage - Improved Sealing of Upper Access Panels - Wing to Fuselage Fairing
- Modification 7/2306
(A/C 1 thru 99)

Oct 28, 1983 Jan 27, 1984 'A'

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