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 21 - 40 of 1683

Bulletins RSS

Aircraftsort ascending S/B No. Title Original Issue Latest Issue
DHC-2T V2/0005

Corrosion Inspection - Elevator Control Rod and Elevator Actuating Lever Control Column

Mar 26, 2012 Mar 4, 2015 'B'
DHC-2T 2/45

Doors - Safety Placards - Inspection and Rectification

Aug 19, 1988 Apr 16, 1993 'A'
DHC-2T V2/0007 ASB

Inspection and/or Replacement of MS21042 Locknut in Horizontal Stabilizer (P/N C2TP1A)

Apr 29, 2013
DHC-2T 2/46

Miscellaneous -Aeroquip Hoses Type 601- Precautionary Inspection and Rectification

Feb 9, 1989 Oct 6, 1989 'C'
DHC-2T 2/47

Stabilizer -Special Inspection for Cracks in the Front Spar of the Horizontal Stabilizer (and Rectification)

Jun 28, 1991 Jun 23, 2007 'E'
DHC-7 7-34-11

Navigation Omega System - To Omit Use of Station Trinidad
(A/C 1 thru 50)

May 15, 1981
DHC-7 7-24-44

Electrical Power - Generator Control Units U13866, U13866/1, U13866/2, U13866/3 - Lucas Aerospace Modification 5063CG (A/C 1 and Sub.)

Jun 25, 1982
DHC-7 7-32-58

Landing Gear - Installation of Protective Boots to Main and Nose Landing Gear Weight Switch Connectors (Superseded by Modifications 7/2417 and 7/2421)
- Modifications 7/2197 and 7/2316) (A/C 3 thru 102)

Sep 9, 1983
DHC-7 7-76-10

Engine Controls - Nacelle Firewall Cable Seal Replacement
- Modification 7/2362
(A/C 1 thru 103)

Aug 17, 1984
DHC-7 7-22-9

Auto Flight - Autopilot Annunciator and System Coupling Switch Installation
- Modification 7/2070
(A/C 3 thru 86 and 89, 91, 94 and 95)

Oct 21, 1983 Feb 28, 1986 'B'
DHC-7 7-30-18

Ice and Rain Protection - Centre Fuselage Ice Guard Installation - S.O.O. 7161
(A/C 1 and Sub)

Dec 21, 1984 Dec 11, 1987 'C'
DHC-7 7-57-21

Wings - Inboard Leading Edge Nose Lower Spar Cap Fastener Replacement
- Modification 7/2359
(A/C 1 thru 98)

Apr 19, 1984
DHC-7 7-27-78

Flight Controls - Introduction of Improved Ground Spoiler Selector Valve No. 1
- Modification 7/2484
(A/C 3 and Sub)

Mar 24, 1989
DHC-7 7-53-13

Airstair Door - Rework to Lower Pressure Stops on Fuselage Frame
- Modification 7/1766
(A/C 1 thru 22)

Sep 26, 1980
DHC-7 7-26-10

Fire Protection - Introduction of Alternative Automatic Fire Extinguisher, above Waste Container in Lavatory
- Modification 7/2550
(A/C 1 thru 110)

May 22, 1987
DHC-7 7-34-27

Area Navigation System - Improvement to Flight Path When Using Vertical Navigation Mode
- Modification 7/1977
(A/C 3 thru 36 with S.O.O. 7016)

Aug 12, 1983 Jan 20, 1984 'A'
DHC-7 7-24-60

Electrical Power - A.C. System 400 Hz
-  Replacement of Paralleling Control Box
-  Modification 7/2459 (A/C 1 thru 107)

Nov 29, 1985
DHC-7 7-32-74

Landing Gear Selector Valve Restrictor - Special Inspection
(A/C 1 thru 107)

Jul 19, 1985
DHC-7 7-79-4

Oil Cooler Drain Valve Installation
-  Modification 7/1536 (A/C 3 thru 23)

Oct 16, 1981
DHC-7 7-23-5

Cockpit Voice Recorder - Self-Test Mod. (A/C 1 and Sub. as required)

Jun 6, 1980

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