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 141 - 160 of 1697

Bulletins RSS

Aircraft S/B No. Title Original Issue Latest Issuesort descending
DHC-6 6/184

Wheel - Skis Main - Installation of Torsion Spring Trim
Mod. 6/1236
(All A/C)

Sep 18, 1969
DHC-7 7-71-8

Power Plant - Front Engine Mount -  Elimination of Dowel Pin
-  Modification 7/2025
(A/C 1 thru 59)

May 15, 1981
DHC-7 V7-33-01

DHC-7 - Fluorescent Light System Overheating - Ballast Replacement

Feb 28, 2008
DHC-7 7-25-21

Furnishings - Overhead Bin Doors -  To Remove Passenger Hazard
-  Modification 7/1773
(A/C 1 thru 36 with S.O.O. 7042)

Feb 20, 1981
DHC-6 6/526

Navigation - Installation of D.C. Attitude Indicator in Lieu of A.C. Attitude Indicator - SOO 6176
(All A/C)

Jul 6, 2001
DHC-7 7-24-40

Electrical Power - Lucas A.E. 2132 MK4 A.C. Generator - Introduction of New Rotor and Fan Assembly
(All DHC-7 A/C with Lucas A/C Generator A.E. 2132 MK4 Installed)

Feb 19, 1982
DHC-7 7-24-41

Electrical System - Fuel Tank Transmitter Cable - Receptacle Replacement
- Modification 7/1999 (A/C 1 thru 92)

Mar 12, 1982
DHC-7 7-30-15

Deicing System - Mechanical Attachment 1 of Stall Bar to Wing Leading Edge
- Modification 7/2240
(A/C 3 thru 112)

Oct 28, 1983
DHC-6 V6/0050

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

Oct 20, 2014
DHC-6 6/105

Battery Installation - Pressure Venting Elimination
Mod. 6/1080
(A/C 1 thru 105)

Mar 6, 1968
DHC-7 7-27-75

Flight Controls - Second Stage Flap Dump Solenoid Valve Rework
- Modification 7/2481
(A/C 3 and Sub. with Modification 7/1734

Dec 6, 1985
DHC-6 6/382

Air-conditioning - Single V-Belt Drive System
Mod. 6/1684
(All A/C)

May 18, 1979
DHC-2 TB/29

Amphibious Landing Gear - Warning Light - Wiring Alterations

Sep 24, 1968
DHC-7 7-27-45

Flaps - Power Control Unit Assembly -  Installation of New Potentiometer
-  Modification 7/2051
(A/C 1 thru 96 with Menasco Flap Power Control Unit 24000 Serial Numbers MC-006 thru MC-103)

Jun 25, 1982
DHC-7 7-34-17

Navigation - R/NAV Interface Box
-  Addition of Capacitor
-  Modification 7/2014
(A/C 3 thru 57 with Area Navigation System S.O.O. 7016)

Mar 5, 1982
DHC-7 7-25-38

Furnishings - Aft. Baggage Compartment Smoke Detector
- Modification 7/1638 (A/C 1 thru 39)

Feb 19, 1982
DHC-7 7-31-2

Digital Flight Recorder - Addition of Reflection Strips, Add Jumper Between U8-13 and U8-14 and Relocation of R2 and R3 to Prevent Interference
(Effectivity - See Sundstrand S/Bs 573A-31-19, 573A-31-20 and 573A-31-21)

Nov 28, 1980
DHC-2T 2/49

Not Applicable

DHC-6 6/121

Elevator/Flap Interconnect Tab - Redesigned to Prevent Distortion Due to Handling
Mod. 6/1121
(A/C 1 thru 105)

Apr 1, 1968
DHC-6 6/67

Protective Treatment - Tailplane De-Icing Boots - Reapplication
(All A/C equipped with de-icing boots)

Dec 18, 1967

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