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


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 121 - 140 of 1683

Bulletins RSS

Aircraftsort descending S/B No. Title Original Issue Latest Issue
DHC-2 TB/45

Transmittal Document for Modification Bulletin T2/2072 "Engine Mount Bushing Replacement" (Refer to Mod. Bulletin for Data)

Jan 16, 1976
DHC-2 2/01

See TB/1

DHC-2 2/17

Not applicable

DHC-2 2/33

Not applicable

DHC-2 TB/13

PT6A-6 & PT6A-20 Engine Water Wash Procedure

Feb 29, 1968 Jul 8, 1968
DHC-3 V3/0004


DHC-3 3/912 B

Elevator Trim Tab - Redesigned Mass Balance Arms.

Nov 11, 1968
DHC-3 3/10

Fatigue of DHC-3 Otter Structure - Component Replacement Times

Aug 26, 1969
DHC-3 3/26

Airworthiness Directives as Issued Against DHC-3 Otter Aircraft

May 14, 1976
DHC-3 3/42

Equipment/Furnishings - Utility Seats Special Inspection and Forward Leg Positive Lock Installation - Modification 3/932

Aug 31, 1984 Sep 18, 1987 'A'
DHC-3 V3/0005

Horizontal Stabilizer Actuator (Trim Jack) - Inspection

Feb 13, 2013 May 27, 2014 'A'
DHC-3 3/913 D

Battery Ground - To Relocate.

Apr 26, 1974 Mar 14, 1975
DHC-3 3/11

Transmittal Document Modification Bulletin 3/912
'Elevator Trim Tab - Redesigned Mass Balance Arm'

Nov 11, 1968
DHC-3 3/27

Altimeter - Introduction of Aerosonic Altimeter 101730-01419 - Modification 3/921

May 14, 1976
DHC-3 3/43

Flight Controls - Elevator and Rudder Pushrod Attachment Bolts - Inspection and Replacement Modification 3/933

Jan 18, 1985 Mar 27, 1987 'A'
DHC-3 3/914

Fire Warning Light Replacement.

DHC-3 3/12

Main Landing Gear - Fuselage Attachment Bolts C3U72 -3 and C3U142-5 - Landplane Only

Nov 7, 1968 Jun 3, 1977 'B'
DHC-3 3/28

Elevator Control Lever Assembly - Inspection

Nov 26, 1976
DHC-3 3/44

Control Cables - Turnbuckle MS21251B Precautionary Inspection

Jun 7, 1985
DHC-3 3/915

Upper and Lower Anti-Collision Lights
To Introduce White Lens.

Jan 10, 1975 Oct 8, 1976 'A'