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 161 - 180 of 1684

Bulletins RSS

Aircraftsort ascending S/B No. Title Original Issue Latest Issue
DHC-7 7-32-90

Landing Gear - Main Gear Lock Strut - Special Inspection of Upper Lock Strut Sub-Assembly
(A/C with Lock Strut Assembly Part Number 15720)

Jul 8, 1988 Oct 28, 1988 'A'
DHC-7 7-23-21

Communications - Cockpit Voice Recorder -  Change of Power Supply
-  Modification 7/2431
(A/C 3 thru 27 without Modification 7/1602 and A/C 28 and Sub. with Modification 7/1602)

Jan 24, 1986
DHC-7 7-32-10

Tail Bumper - Introduction of New Gasket
-  Modification 7/1375
(A/C 1 thru 4 and 7

May 25, 1979
DHC-7 7-61-12

Propellers - Beta Feedback leeve
-  Locking Cup and Shim Replacement
-  Hamilton Standard S/B 61-1030
-  Modification 7/2154
(Effectivity - See Hamilton Standard S/B 61-1030)

Mar 26, 1982 Sep 10, 1982 'A'
DHC-7 7-11-26

Placards and Markings - Windshield Washer System - To Identify Permissible Fluid Types
- Modification 7/2312
(A/C 001 thru 103 incorporate de Havilland S.O.O. 7039 Windshield Washer System)

Mar 31, 1983
DHC-7 7-28-18

Fuel System - Wing Underside Flap Track Number 4 Canoe Special Inspection and Application of Fuel Containment Coating
- Modification 7/2518 (A/C 1 and Sub.)

May 16, 1986 May 8, 1987 'C'
DHC-7 7-54-11

Nacelles - Replacement of Landing Gear/ Rear Spar Diagonal Frame Members 75420012 with Members 75421508
-  Sub-Parts of Assembly 7Z5400
-  Modification Kit 7MK1500-001 (Part of Modification 7/1500) (A/C 3 thru 27)

Sep 29, 1989 Nov 3, 1989 'A'
DHC-7 7-27-30

Flight Controls - Flap Controls - Screw- jacks at Track No. 2, 3 and 4 - Lubrication Drain Plug at Gearbox
- Modifications 7/1754, 7/1755 and 7/1756
(A/C 1 thru 62)

Feb 20, 1981 Sep 25, 1981
DHC-7 7-52-2

Upper Airstair Door - To Improve Locking System Operation
- Modification 7/1225
(A/C 1, 2 and 4)

Apr 21, 1978
DHC-7 7-25-23

Furnishings - Replacement of Seat Pitch Indicators on Seat Rails
- Modification 7/1925 (A/C 3 thru 37)

Mar 20, 1981
DHC-7 7-33-3

Upper Anti-Collision Strobe Light Lightning Protection
- Modification 7/1307 (A/C 1, 2 and 4)

Jul 7, 1978
DHC-7 7-24-12

A.C. System 400 Hz - Paralleling Control Box - To Replace Modification 7/1658 (A/C 1 thru 14)

Sep 24, 1979
DHC-7 7-32-26

Nose Landing Gear Emergency Selector
- Special Inspection
(A/C 3 thru 26)

Jun 16, 1980 Oct 17, 1980 'A'
DHC-7 7-71-9

Power Plant - Serial Numbers on Lord Kinematics Corporation New and Refurbished Engine Mounting Assemblies
(All A/C)

Oct 29, 1981
DHC-7 7-21-7

Air Conditioning - Flow Control Elimination
- S.O.O. 7069
(A/C 1 and Sub. as required)

Jan 5, 1980
DHC-7 7-29-6

Hydraulic System - Piping in Wing
- Special Inspection
(A/C 1 thru 20)

Feb 22, 1980
DHC-7 7-55-6

Stabilizers - Tailplane, Elevator, Elevator Spring and Trim Tabs - To Minimize Ice Accumulation
- Modifications 7/2209, 7/2211, and 7/2216
A/C 3 thru 70, 72 thru 77, 79 thru 83, 85, 86, 71, 78, 84 and 87 and subsequent will Embody Modifications Prior to Delivery)

Feb 26, 1982 Oct 1, 1982 'C'
DHC-7 7-27-46

Flight Controls - Ground Spoiler Control System Functional Check and Rectification
- Modifications 7/2294 and 7/2296
(A/C 1 thru 93)

Sep 20, 1982 Dec 17, 1982 'B'
DHC-7 7-52-17

Rear Emergency Exit - Improved Latch Indication
- Modification 7/1555
(A/C 1 thru 27)

Sep 19, 1980 Apr 12, 1982 'A'
DHC-7 7-25-39

Furnishings - Underwing Bin Filler Panel Replacement
- Modification 7/1793 (A/C 1 thru 39)

Apr 12, 1982

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