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 1683

Bulletins RSS

Aircraftsort ascending S/B No. Title Original Issue Latest Issue
DHC-7 7-22-7

Auto Flight - Autopilot Systems -  Aileron Servo Improvement
-  Modification 7/2328
(A/C 1 thru 83, 85, 86, 89, 94 and 95)

Mar 25, 1983 Nov 25, 1983 'B'
DHC-7 7-30-16

Propeller Deicing System - No. 1 Single Cycle Timer Replaced with a Dual Cycle Timer
-  Modification 7/2281
(A/C 3 thru 86, 89, 91, 94 and 95)

Oct 14, 1983
DHC-7 7-57-19

Wings - Rear Mounting Adapter Plates -  Inspection, Rectification and Modification
-  Modification 7/2355 (A/C 1 thru 99)

Feb 24, 1984
DHC-7 7-27-76

Flight Controls - Elevator Trim Jack -  To Introduce a Water Drain Hole
-  Modification 7/2489
(A/C 3 and Sub.)

Jan 17, 1986 Jan 30, 1987 'B'
DHC-7 7-53-11

Fuselage Structure - Installation of Cleats - Special Inspection and Rectification
(A/C 7, 9 and 10)

Sep 26, 1980
DHC-7 7-26-8

Fire Protection - Lavatory - Introduction of Smoke Detector
- Modification 7/2497
(A/C 1 and Sub.)

Aug 15, 1986 Mar 20, 1987 'C'
DHC-7 7-34-25

Navigation - Data Nav. 11 System Component Improvements
- Modification 7/2207
(A/C 1 thru 112 with S.O.O.
7076 Installation of Data Nav. 11 System)

Jun 17, 1983
DHC-7 7-24-58

Electrical Power - Replacement A.C. Generator
- Modification 7/2097
(A/C 1 thru 107)

Jun 15, 1984 Feb 20, 1987
DHC-7 7-32-72

Landing Gear - Nose Landing Gear Shimmy Suppression Balance Weight Installation
- S.O.O. 7173

May 24, 1985 Feb 21, 1986 'A'
DHC-7 7-79-2

Engine Oil Low Pressure Warning Switch
-  To Introduce Switch with Higher Setting
- Modifications 7/1465, 7/1876 and E.O. 72047
(A/C 1 thru 33)

Feb 2, 1979 Jan 30, 1981 'C'
DHC-7 7-23-3

Passenger Address System - Alternate Power Source Under Emergency Conditions
- Modification 7/1434
(A/C 1 - 4, 6, 7, 9 and 10)

Jun 13, 1980
DHC-7 7-31-3

Communications - Cockpit Voice Recorder Model AV-557B Installation or Provisions for Underwater Locating Device (ULD)
- S.O.O. 7073
(A/C 1 and Sub. as required)

Jan 16, 1981
DHC-7 7-57-35

NOT ISSUED

DHC-7 7-11-8

Hydraulic System - Introduction of Caution Label at Ground Connection Panel
- Modification 7/1398
(A/C 1 thru 10 and 12)

Jul 20, 1979
DHC-7 V7-27-02

Solenoid Valve Second Stage Flap Dump - Screw Replacement

Oct 18, 2007
DHC-7 7-53-27

Fuselage - Insulation Support
- Modification 7/2247
(A/C 1 thru 112)

Feb 24, 1984
DHC-7 7-27-12

Rudder Pedals Tube Assembly - Special Inspection
(A/C 3 thru 7, 9, 10 and 11)

Aug 17, 1979
DHC-7 7-34-41

Navigation - Aircraft Performance Limitations for Traffic Alert and Collision Avoidance System II (TCAS II) Advisory Planning
Model 102 and Model 103 Aircraft operating into or within the United States

Jul 19, 1991 Jul 1, 1994 'A'
DHC-7 7-25-5

Furnishings - Installation of Improved Food Tray Assemblies and Retainers
- Modifications 7/1318, 7/1436 and 7/1454
(A/C 1 thru 7, 9 and 10)

Apr 30, 1979 Aug 17, 1979 'A'
DHC-7 7-32-88

Landing Gear - Nose Gear Steering Actuator
-  Increased Anti-Cavitation Provisions
-  Modification 7/2526
(A/C 1 thru 113)

Mar 4, 1988

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