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 41 - 60 of 1693

Bulletins RSS

Aircraft S/B No. Title Original Issue Latest Issuesort descending
DHC-6 6/56

Windshields, Cabin, Windows and Skin Joint - Resealing
(All A/C)

Nov 6, 1967
DHC-2 V2/0011

Updated DHC-2 Maintenance Program With Supplemental Inspection Tasks for Corrision Control and Aging Aircraft

Nov 28, 2019
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-7 7-38-1

Water/Waste - Addition of Drainage Line from Airstair Door Lower Sill
- Modification 7/2307
(A/C 1 thru 113)

Nov 25, 1983
DHC-7 7-27-36

Flight Controls - Control Column Forward Sealing Plate Assembly - Inspection and Rectification - DHC E.O. 72195
(A/C 3 thru 53, 55, 56, 57 and 59)

Nov 6, 1981
DHC-6 V6/0015

Drain Hole Modifications for Cockpit Doors

Apr 6, 2011
DHC-7 7-21-22

Air Conditioning - Cabin Temperature Bias Selector and Fan Assisted Flight Compartment Temperature Sensor Installation
- S.O.O. 71 50
(All DHC -7 A/C)

May 4, 1984
DHC-7 7-61-18

Propellers - Installation of Metal Sheathing to Blades and Spinners
- Modification 7/2476
(All A/C with S.O.O. 7131)

Nov 15, 1985
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-7 7-32-96

Landing Gear - Main Wheels/Brakes -  Inspection/Replacement of Brake Accumulator
All Aircraft

Mar 26, 1993
DHC-7 7-25-29

Furnishings - Toilet Door Lock Mechanism Rework
- Modification 7/2063
(A/C 3 thru 52 less 51)

Nov 6, 1981
DHC-6 6/231

Improved Fuel System Filtration
Mod. 6/1229
(A/C 1 thru 290)

Dec 23, 1969
DHC-7 7-54-17

Nacelles - Inboard Nacelles - Main Landing Gear Door Mechanism Spigot Replacement
- Modification 7/2538
(A/C 3 thru 27)

Apr 17, 1987
DHC-6 6/151

Sliding Door - Cabin/Cockpit Handle and Latch Retainer
Mod. 6/1132
(A/C 1 thru 135)

Jun 18, 1968
DHC-6 6/72

Cabin Heat - Potentiometer Replacement to Increase Range of Temperature Control
Mod. 6/1054
(A/C 1 thru 55)

Dec 20, 1967
DHC-6 6/291

Engine Fuel System - 10 Micron High Pressure Fuel Filter
Mod. 6/1442
(A/C 1 thru 342 with S.O.O. 6117)

Mar 9, 1972
DHC-7 7-24-43

Electrical System - Crash Fire Precautions -  Power Supply Change
-  Modification 7/2015 (A/C 3 thru 92)

Jan 14, 1983
DHC-3 3/51

Fuselage - Inspection/Rectification of Loose Rivets in Flight Compartment-to-Cabin Frame at Station 111.00

Jan 26, 1996
DHC-7 7-32-47

Nose Landing Gear - Downlock Mechanism Improvement
- Modification 7/2243
(A/C 3 thru 112)

Aug 20, 1982
DHC-7 7-71-15

Power Plant - Torquemeter Cylinder - Pratt and Whitney S/B 4066
(All A/C with PT6A-50 Engines Prior to Serial Number PC-E86272)

Jun 18, 1982

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