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 for DHC & CL Aircrafts

Manual Status List – DHC-2 to DHC-7

Manual Status List - CL-215/215T/415/415MP

To obtain a subscription to a digital library, please contact ATP:

For more information on digital technical publications, please contact technical.support@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 1 - 20 of 1685

Bulletins RSS

Aircraft S/B No. Title Original Issue Latest Issuesort descending
DHC-7 7-71-3

Engine Cowling - To Rework Aft Panel
- Modification 7/1354
(A/C 1 thru 12)

Mar 30, 1979
DHC-7 V7-54-02

Cracks in Engine Outboard Nacelles Upper Longerons

Dec 14, 2012
DHC-2 TB/46

Transmittal Document for Modification Bulletin T2/2070 "Engine Mounting Vibration Isolator Standardization" (Refer to Mod. Bulletin for Data)

Jan 9, 1976
DHC-7 7-27-50

Flight Controls - Ground Spoiler - Rigging Check -
DHC E.O. 72301
(A/C 1 and Sub.)

Jan 28, 1983
DHC-6 6/20

Nose Landing Gear - Addition of Centering Latch
Mod. 6/1040
(A/C 4 thru 37)

May 12, 1967
DHC-7 7-24-22

400 Hz Inverters - Deletion of Power Factor Correction Capacitors
- Modification 7/1690
(A/C 1 thru 27)

May 23, 1980
DHC-7 7-25-43

Furnishings - Improved Aft Fuselage Under-Floor Access
- Modification 7/1352 (A/C 3 thru 27)

Jun 10, 1983
DHC-7 7-21-17

Air Conditioning - Improved Gasper Outlet Valves
- Modification 711 924
(NC 13 thru 72)

Apr 12, 1982
DHC-6 6/101

Airstair Door - Safety Guard Installation - Label Change
Mod. 6/1068
(A/C 1 thru 60)

Feb 21, 1968
DHC-6 6/377

Hydraulic Pump Power-Off Warning Light - To Relocate
Mod. 6/1654
(A/C 1 thru 594)

Sep 8, 1978
DHC-2T 2/50

See TB/58

DHC-7 7-71-19

Power Plant - Forward and Centre Engine Cowlings - Improved Exhaust Duct Seals
- Modification 7/2050
(A/C 1 thru 102)

Dec 17, 1982
DHC-6 6/453

Landing Gear - Nose Wheel Steering Cables Material Change
(A/C 1 thru 800)

Feb 24, 1984
DHC-7 7-38-1

Water/Waste - Addition of Drainage Line from Airstair Door Lower Sill
- Modification 7/2307
(A/C 1 thru 113)

Nov 25, 1983
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-2 2/02

Beaver Aircraft Equipped with Dowty Shock Strut Q- 3046-1 or
Q-3047-1, Distance Piece and Bearing - To Replace

Mar 8, 1967
DHC-7 7-32-96

Landing Gear - Main Wheels/Brakes -  Inspection/Replacement of Brake Accumulator
All Aircraft

Mar 26, 1993
DHC-7 7-78-3

Exhaust - Engine Exhaust Duct Fairing
-  Improved Method of Attachment
-  Modification 7/2462
(A/C 3 & Sub. with Modification 7/2187)

Oct 11, 1985
DHC-7 7-27-66

Flight Controls - Revised Elevator Trim Screw Jack Installation
- Modification 7/2393
(A/C 1 thru 102)

Jun 28, 1985
DHC-6 6/36

Landing Gear Main - Prevention of Rebound Bolt Vibration
Mod. 6/1031
(A/C 1 thru 17)

Jul 10, 1967

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