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 1689

Bulletins RSS

Aircraft S/B No. Title Original Issue Latest Issuesort descending
DHC-7 7-21-5

Air Conditioning - Cabin Improvement
- Modification 711444
(A/C 1 thru 7 and 9)

Jul 6, 1979
DHC-6 V6/0050

Electrical Connector P34/J34 Locking
(S/N 845 thru 868)

Oct 20, 2014
DHC-6 6/344

Static Selector Valve Replacement
Mod. 6/1506
(A/C 1 thru 490)

Mar 5, 1976
DHC-7 7-57-23

Wings - Reinforcement of Inboard Trailing Flap Fairing Attachment Areas
- Modification 7/2302
(A/C 3 thru 82)

Jul 6, 1984
DHC-2 TB/52

Flight Controls - Rudder Horn - To Replace - Modification Bulletin T2/2077

Sep 23, 1981
DHC-6 6/264

Air Speed Indicator and Operating Instructions Placard
Mod. 6/1291
(A/C 231 thru 270)

Nov 20, 1970
DHC-6 6/80

Electrical System - Deletion of Time Delay from Start Control Circuit
Mod. 6/1090
(A/C 1 thru 80)

Jan 3, 1968
DHC-7 7-76-12

Engine Controls - Nacelles - New Fireseal Installation of Control Cable Penetrations in Firewall
- Modification 7/2519
(A/C 3 thru 107)

Nov 14, 1986
DHC-6 6/159

Nosewheel Steering - Operating Cable - Double Shank Swaged Ball - Introduction
Mod. 6/1164
(A/C 1 thru 170)

Sep 12, 1968
DHC-7 7-25-46

Equipment and Furnishings - Tail Strut Stowage Provisions
- S.O.O. 7160
(A/C 1 Sub.)

Jun 29, 1984
DHC-7 7-32-30

Main Landing Gear Wheels - Insert and Drive Lug Repair Limits
(All A/C)

Sep 5, 1980
DHC-7 7-33-15

Lights - Sidewall Lighting - Introduction of Fluorescent Lights
- Modification 7/2445
(A/C 3 thru 112)

Sep 25, 1987
DHC-7 7-24-26

A.C. Generator Type AE2132 MK3 and MK4 - Improved Fan Bush and Main Exciter Rotor (A/C with A.C. Generators AE2132 MK3 or MK4)

Oct 10, 1980
DHC-7 7-21-21

Air Conditioning - Removal of Pressurization System Flight Compartment Solenoid Dump Valve
- Modification 711446
(A/C 1 thru 10)

Sep 2, 1983
DHC-2T 2/49

Not Applicable

DHC-6 6/360

Fuel System - Interference Between Fuel Line and Invermotor Pump Wiring Terminal
Mod. 6/1626
(A/C 1 thru 540)

May 3, 1977
DHC-7 7-57-39

NOT ISSUED

DHC-2 2/08

See TB/38

DHC-6 6/280

Air Conditioning Compartment - To Improve Sealing
(A/C 1 thru 330)

Jul 30, 1971
DHC-7 7-53-31

Fuselage - Introduction of New Nose Landing Gear Outer Drag Strut Attachment Fitting
- Modification 7/1328
(A/C 3 thru 27)

Dec 15, 1989

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