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 61 - 80 of 1683

Bulletins RSS

Aircraftsort ascending S/B No. Title Original Issue Latest Issue
DHC-7 7-34-6

R.N.A.V. System Digital Computer - IFR Procedure Restriction (A/C 14, 16 and 21 and Sub.)

May 23, 1980
DHC-7 7-24-39

Electrical Power - D.C. Busbar Protection Unit ZA29702 - Lucas Aerospace Modification 5064CG (A/C 1 and Sub.)

Nov 13, 1981
DHC-7 7-32-53

Main and Nose Landing Gear - Wheel Bearing Seal Replacement
(B.F. Goodrich Main Landing Gear Wheel Assemblies 3-1354 Prior to Serial Number 776 and Nose Landing Gear Wheel Assemblies 3-1368 Prior to Serial Number 523)

Feb 11, 1983
DHC-7 7-76-5

Engine Control Cables - Seal Plate Special Inspection and Rectification
- Special Inspection
(A/C 3 thru 65)

Oct 23, 1981
DHC-7 7-22-4

Auto Flight - Rework to AFCS Relay Box
- Modification 7/1920
(A/C 28 thru 34)

Jan 15, 1982
DHC-7 7-30-13

Propeller Deicing System - No. 1 and No. 2 Single Cycle Timer Replaced with Dual Cycle Timers
- Modification 7/2339
(A/C 3 thru 112)

Aug 10, 1984 Feb 7, 1986 'B'
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
DHC-7 7-57-32

Wings - Rear Spar Fittings - Rework Aileron Cable Pulley Bracket
- Modification 7/2564 (A/C 3 and Sub.)

Apr 15, 1988
DHC-7 7-11-5

Propeller Limitation - Addition of Caution Label on Engine Instrumentation
- Modification 7/1370
(A/C 1 thru 8)

Aug 14, 1978
DHC-7 7-27-89

Flight Controls - Adjustment Mechanism - Rudder Pedal - Bolt Inspection/Replacement All Aircraft

Oct 14, 1993
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

Pages