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, DHC-2 to DHC-7

View LIST

To obtain a subscription to a digital library, please contact ATP:

For more information on digital technical publications, please contact technical.publications@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 81 - 100 of 1683

Bulletins RSS

Aircraft S/B No. Title Original Issue Latest Issuesort descending
DHC-7 7-27-24

Flying Controls Rudder System - To Reduce Sensitivity of Spring Strut Actuating Switch
- Modification 7/1507
(A/C 1 thru 27)

Sep 12, 1980
DHC-7 7-39-4

Instruments - Turn and Slip Indicator -  To Compensate for 90_ Instrument Panel Slope
-  Modification 7/1577
(A/C 1 thru 27 less 23)

May 9, 1980
DHC-2 2/32

Aileron - Addition of Nose Caps to Mass Balance Weights

Apr 10, 1981
DHC-6 AV6/0030

Defective Engine Cowling Latches - P/N C6EC1002-93
(S/N 587, 652, 781, 849, 850, 852, 853 and 854)

Dec 2, 2011
DHC-6 6/157

Engine Bleed Air System - Check Valve
Mod. 6/1152
(A/C 1 thru 5)

Sep 4, 1968
DHC-7 7-71-3

Engine Cowling - To Rework Aft Panel
- Modification 7/1354
(A/C 1 thru 12)

Mar 30, 1979
DHC-7 7-21-1

Nose Avionics Bay - Additional Cooling Fan
- Modification 711378 (A/C 3, 4, 7 and 9)

Aug 31, 1978
DHC-6 6/77

De-Icing System - Provision of Drainage for Condensate
Mod. 6/1154
(A/C 1 thru 94)

Jan 10, 1968
DHC-6 6/413

Rudder Gustlock Control - Adjustable Plunger Clearance to Rudder Quadrant
Mod. 6/1755
(A/C 271 thru 771 Incorporating Mod. 6/1235)
(Redesigned Rudder Control Gust Lock Mechanism)

Apr 12, 1982
DHC-7 V7-54-02

Cracks in Engine Outboard Nacelles Upper Longerons

Dec 14, 2012
DHC-6 6/333

Autofeather System Pressure Switch
Mod. 6/1503
(A/C 291 thru 470)

Jul 4, 1975
DHC-7 7-52-12

Nose Landing Gear Doors - Increased Diameter Hinge Pins
- Modification 7/1487
(A/C 1 thru 7, 9 and 10)

Nov 16, 1979
DHC-2 A2/48

Fuselage - Wing Struts - Inspection of the Lower Steel End-Fitting Area

Aug 10, 1993
DHC-7 7-25-33

Flight Compartment Doorlock - Rework and Replacement - Modification 7/1958
(A/C 1 thru 52)

Jan 8, 1982
DHC-6 6/253

Nose Gear Hydraulic Line Covers
Mod. 6/1368
(A/C 1 thru 330)

Nov 9, 1971
DHC-7 7-33-13

Lights - Wing Tips - Installation of Dual Lights on Shock Mounts
- Modification 7/2410
(A/C 1 thru 112)

Oct 11, 1985
DHC-2 TB/28

Transmittal Document for Modification Bulletin T2/2052
Windscreen Defroster Cutlets - Improved" (Refer to Mod. Bulletin for Data)

Jun 21, 1968
DHC-7 7-24-22

400 Hz Inverters - Deletion of Power Factor Correction Capacitors
- Modification 7/1690
(A/C 1 thru 27)

May 23, 1980
DHC-6 6/173

Main Undercarriage - Stay Assembly Replacement
(A/C 1 thru 5)
(Date on S/B incorrectly shown as 02 Jan 68)

Jan 2, 1969
DHC-7 7-32-36

Nose Landing Gear - Emergency Extension Selector Valve - To Eliminate Valve Handle Override
- Modification 7/1891
(A/C 1 thru 31, 33, 34 and 36 thru 42)

Mar 20, 1981

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