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 1541 - 1560 of 1683

Bulletins RSS

Aircraftsort descending S/B No. Title Original Issue Latest Issue
DHC-7 7-56-6

Windows - Addition of Direct Vision Window Guide Plate and Slider Block
- Modification 7/1963
(A/C 3 thru 100)

Mar 23, 1984
DHC-7 7-27-56

Flight Controls - Ground Spoiler Selector Valves Functional Check and Replacement
- Modification 7/2340
(A/C 1 thru 95 less 87, 88, 90, 92 and 93)

Jun 28, 1983 Sep 14, 1984 'B'
DHC-7 7-52-27

Airstair Door - Ground Lock Pin Stowage Provision Relocation
- Modification 7/1919
(A/C 3 thru 57)

Dec 4, 1981
DHC-7 7-25-49

Equipment/Furnishings - Rear Baggage Compartment - Installation of Ceiling Firescreen
- Modification 7/2499
(A/C 1 and Sub.)

Apr 18, 1986 Jul 31, 1987 'B'
DHC-7 7-34-5

Area Navigation System - Jet Electronics and Technology (J.E.T.) DAC-2000
(A/C 14 and 16 and any other A/C Equipped with DAC-2000 System)

Dec 12, 1979 Jan 27, 1980 'A'
DHC-7 7-24-38

Electrical Power - Generator Control Units U13866, U13866/1, U13866/2 and U13866/3 - Lucas Aerospace Modification 5474U (A/C 1 and Sub.)

Nov 13, 1981
DHC-7 7-32-52

Landing Gear - Nose Landing Gear
-  Actuator Hydraulic Hoses
-  Special Inspection
-  Modification 7/2272 (A/C 1 thru 94)

Jan 28, 1983
DHC-7 7-76-4

Engine Controls - Flight Idle Gate Motor Replacement
- Modification 7/1399
(A/C 1 thru 14)

Nov 28, 1980
DHC-7 7-22-3

Auto Flight - Control System -  Installation of Two Additional Relays
-  Modification7/2144 (A/C 3 thru 61)

Jan 15, 1982 Apr 12, 1982 'A'
DHC-7 7-30-12

Snow Separator Actuator - Interchangeable Replacements
- Modifications 7/1782, 7/2020 and 7/2228 (A/C 1 and Sub.)

Aug 20, 1982 Oct 28, 1988 'E'
DHC-7 7-57-16

Wing - Trailing Edge Shroud to Flap -  Replacement Seals
-  Modification 7/2039
(A/C 3 thru 92)

Aug 12, 1982 Aug 17, 1984 'A'
DHC-7 7-27-73

Flight Controls - Spoiler Control Servo Assembly - Addition of Flow Restrictor
- Modification 7/2405
(Effectivity - Refer to Parker S/B 265100-27-113)

Jul 19, 1985
DHC-7 7-53-8

Nose Landing Gear Emergency Handpump Door - To Improve Operation
- Modification 7/1384 (A/C 1 thru 12)

Nov 23, 1979
DHC-7 7-26-5

Fire Protection - Detection System Cable Assembly with Hermetically Sealed Connectors
- Modification 7/2148
(A/C 003 thru 122)

Oct 28, 1982
DHC-7 7-34-22

Navigation - Ground Proximity Warning System - To Upgrade the System to all Modes Inhibit Function
(A/C 8, 12, 22, 41, 45, 46, 50, 52, 53, 55 thru 61, 63, 64 and 65 with Sundstrand MKII Ground Proximity Warning System)

Jun 17, 1983 Sep 14, 1984 'B'
DHC-7 7-24-55

Electrical Power - D.C. Generator Control Unit Type U13866/1, U13866/2 and U13866/3
- Lucas Aerospace Modification 5184 CG (A/C 1 and Sub. with U13866 DC Generator Control Unit)

Feb 17, 1984
DHC-7 7-32-69

Landing Gear - Nose Landing Gear Downlock Actuator Reduced Working Stroke
- Modification 7/2244 (A/C 3 thru 122)

Feb 22, 1985 Aug 23, 1985 'A'
DHC-7 7-78-2

Engine Exhaust - Rework or Replacement of Exhaust Duct Fairings
-  Modification 7/2187
(A/C 1 thru 112)

Nov 25, 1983 Sep 15, 1989 'B'
DHC-7 7-22-20

Automatic Flight Control System - Inspection/Replacement of Elevator and Aileron Servo Drive Part Numbers.
(A/C 3 thru 113)

May 29, 2006
DHC-7 7-30-29

Ice and Rain Protection - Windshield Wiper Control - Relocation of Current Limiting Resistor from Positive to Ground Side
- Modification 7/2562
(A/C 1 and Sub.)

Mar 3, 1989

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