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 Aircraft

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 csps-tp@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 CSPS Technical Publications Coordinator at csps-tp@vikingair.com.

Displaying 81 - 100 of 1697

Bulletins RSS

Aircraft S/B No. Title Original Issue Latest Issuesort descending
DHC-7 7-32-79

NOT ISSUED

DHC-6 6/62

Intake Deflector/Snow Separator Operating Instructions
(All A/C)

Nov 9, 1967
DHC-2 V2/0007 ASB

Inspection and/or Replacement of MS21042 Locknut in Horizontal Stabilizer (P/N C2TP1A)

Apr 29, 2013
DHC-7 7-30-25

Ice and Rain Protection - Snow Separator Actuator - Change of Stroke Limit
- Modification 7/2540
(A/C with ITT Actuator LA11A2113-1 or -2

Jul 31, 1987
DHC-7 7-76-11

Engine Controls - Cables - Installation of Turnbuckles in Wing Leading Edge
- Modification 7/2418
(A/C 1 and Sub.)

Apr 11, 1986
DHC-6 6/160

Certification of Static Pressure System and Altimeter Indicators
(A/C 1 thru 150)

Sep 17, 1968
DHC-3 3/41

Non-approved Components and Installations

Mar 30, 1984
DHC-7 7-27-85

Flight Controls - Replacement of Flap Overspeed brake
- Modification 7/2600
(A/C 1 and Sub.)

May 10, 1991
DHC-6 6/344

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

Mar 5, 1976
DHC-7 7-26-1

Fire Protection System - Inspection of Fire Bottle Cartridge Connector
(A/C 1 thru 22)

Apr 11, 1980
DHC-7 7-54-2

Inboard and Outboard Nacelles -  To Provide Access to Upper Mounting of Propeller Synchrophaser Actuator
-  Modification 7/1216
(A/C 1, 2 and 4)

Nov 20, 1978
DHC-6 6/264

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

Nov 20, 1970
DHC-2 2/07

Engine Compartment Fire Extinguisher - Introduction of Graviner Type 161A

Feb 9, 1971
DHC-7 7-32-95

Landing Gear - Nose Landing Gear Steering
-  Reduction of Actuator Creep
-  Modification 7/2608
Serial Numbers 3 thru 113

Jul 31, 1992
DHC-6 6/78

Landing Gear Main - Compression Block Replacement
Mod. 6/1022
(A/C 1 thru 35)

Jan 2, 1968
DHC-6 6/453

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

Feb 24, 1984
DHC-7 7-23-1

Audio Integrating Systems - Wiring Revision
- Modification 7/1262
(A/C 1, 2 and 4)

Sep 29, 1978
DHC-6 6/176

Engine Lower Cowling - Bleed Pressure Lines to Snow Separator Cylinders
Mod. 6/1179
(A/C 1 thru 136)

Jan 21, 1969
DHC-7 7-61-19

Propellers - Change to Lower Rated Circuit Breaker in Synchrophase Control
- Modification 7/2567
(All A/C)

Sep 2, 1988
DHC-7 7-11-6

Cargo Door - To Add Caution Label
- Modification 7/1470 (A/C 7 and 9)

Feb 23, 1992

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