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 21 - 40 of 1697

Bulletins RSS

Aircraft S/B No. Title Original Issue Latest Issuesort descending
DHC-7 A7-32-15

Main Landing Gear - Emergency Extension System - Special Inspection
(A/C 1 thru 15)

Nov 26, 1979
DHC-3 3/896

Muff Assembly - Carburetor Hot Air - To Provide for Thermal Expansion.

Jun 25, 1963
DHC-7 7-25-11

Overhead Stowage Bin Door - Inspection for Fouling (A/C 1 and Sub.)

Oct 3, 1980
DHC-7 7-28-23

Fuel - Left and Right Hand Tanks - Special Inspection for Bonding Integrity and Condition of the Bonding Jumpers, Conduit, Probes and Related Components
- Modification 7/1397 (A/C 3 thru 113)

Aug 20, 2002
DHC-6 6/179

Floatplane Accessories Detailed Improvements
Mod. 6/1167
(Floatplanes Prior to A/C 201)

Jan 28, 1969
DHC-2 TB/3

Corrosion of Hartzell Propeller Type HC-B3TN-3 & 3B
Low Stop Rods Part No. B3002

Apr 26, 1967
DHC-6 V6/0040

NOT ISSUED

DHC-7 7-21-10

Pressurization System - Outflow Valves Noise Reduction
- Modification 711699
(A/C 1 thru 27, less 10)

Jun 20, 1980
DHC-7 7-71-22

Power Plant - Relocation of Engine rain Line
- Modification 7/2411
(A/C 3 thru 105 less 104 and 106 with S.O.O. 7025)

Oct 5, 1985
DHC-7 7-52-11

Airstair Door - To Increase Clearance at Door Stop Spindles
- Modification 7/1554
(A/C 1 thru 4, 6, 7, 9 and 10)

Oct 5, 1979
DHC-7 7-57-2

Fore Flap Leading Edge - To Reinforce
- Modification 7/1306
(A/C 4)

Dec 8, 1978
DHC-6 6/29

Engine Lower Cowl - Snow Separator Air Control Valve Filters
Mod. 6/1056
(A/C 1 thru 55)

Jun 6, 1967
DHC-7 7-27-34

Flap Control System - Flap Screwjack Tracks No. 2 and 3 - To Introduce an Improved Locking Feature for Aft Bearing Nut and Greasing Provision
- Modifications 7/1591 and 7/1590 (A/C 3 thru 27 - Modification 7/1591; 3 thru 29 - Modification 7/1590)

Sep 4, 1981
DHC-7 7-33-12

Lights - Lower Anti-Collision Light Ground Wire Retermination
- Modification 7/1992
(A/C 1 thru 92)

Feb 25, 1983
DHC-7 7-32-31

Main Landing Gear - Drag Strut Bearing Housing Installation - Special Inspection and Rectification
(A/C 1 thru 23)

Oct 10, 1980
DHC-2 2/39

Seats and Their Attachments - Continuing Integrity

Aug 31, 1984
DHC-3 3/08

Cancelled and Superseded by Service Bulletin 3/12

May 17, 1968
DHC-7 7-25-27

Furnishings - Flight Compartment Door -  Addition of Latch for Use with Observer's Seat
-  Modification 7/1749
(A/C 1 thru 34 with S.O.O. 7026)

Nov 20, 1981
DHC-7 7-29-11

Hydraulic System - Rudder Actuator -  Installation of Heavier Wall Pressure Tube Assembly on Vertical Stabilizer
-  Modification 7/2236
(A/C 21 thru 73 less 53, 58, 68 and 71)

Apr 23, 1982
DHC-6 6/195

Main and Auxiliary Battery Blocking Diodes
Mod. 6/1283
(A/C 1 thru 310)

Sep 17, 1969

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