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

Aircraftsort ascending S/B No. Title Original Issue Latest Issue
DHC-7 7-24-14

Electrical System - To Provide Independent Control of Inner and Outer Landing Lights
- Modification 7/1335 (A/C 3 thru 27)

Jan 5, 1980
DHC-7 7-32-28

Tail Bumper - To Increase Strength of Installation
- Modification 7/1293
(A/C 1 thru 12)

Sep 5, 1980
DHC-7 7-71-11

Power Plant - Compressor Bleed Valve Assembly - Pratt and Whitney S/B 4067 (Effectivity - See Pratt and Whitney S/B 4067)

Feb 19, 1982 Jun 25, 1982 'A'
DHC-7 7-21-9

Bleed Air System - To Install Diverter Valve
- S.O.O. 7066
(A/C 1 and Sub. as required)

May 30, 1980 Oct 2, 1981 'A'
DHC-7 7-29-8

Roll Spoiler Hydraulic Piping - Replacement of Pressure and Return Pipes
- DHC E.O. 72082
(A/C 21 thru 29)

Oct 17, 1980
DHC-7 7-55-8

Horizontal Stabilizer - Elevator Gust Lock - Jo-Bolt Special Inspection and Replacement
(A/C Serial Numbers 4 and Sub.)

Sep 30, 1983 Mar 22, 1985 'B'
DHC-7 7-27-48

Flight Controls - Trailing Flaps Magnetic Switch Wiring Rework
- Modification 7/1937
(A/C 1 thru 92)

Dec 22, 1982
DHC-7 7-52-19

Airstair Door - Hinge Adjustment
- Modification 7/1741
(A/C 3 thru 10, 12 thru 17, 19, 21, 22, 24 and 26)

Sep 26, 1980 Jan 23, 1981 'A'
DHC-7 7-25-41

Life Raft - Cover Panels - Improved Retention
-  Modification 7/2194
(A/C 10, 20, 40 and 51 - these A/C incorporate S.O.O. 7045 -  Ditching Provisions and Survival Equipment)

Feb 11, 1983
DHC-7 7-33-21

Lights - Flight Compartment Utility Lighting Rheostat Switch Change
- Modification 7/2565
(All A/C)

Sep 2, 1988
DHC-7 7-24-30

Electrics - Addition of Pitot Heat Power Supply Indication
- S.O.O. 7084
(A/C 1 thru 38)

Feb 13, 1981 Mar 27, 1981 'A'
DHC-7 7-32-44

Main and Nose Landing Gear Wheel Assemblies - Improved Inboard Grease Seal DHC-7 Main Landing Gear Wheel Assembly 3-1354 Prior to Serial Number 691 and Nose Landing Gear Wheel Assembly 3-1368 Prior to Serial Number 440

Jan 15, 1982
DHC-7 7-73-3

Fuel Flow Transmitter - Replacement -
Modifications 7/1781 and 7/1946
(A/C with Fuel Flow Transmitters TFF2911-2 or TFF2911-3)

Jun 19, 1981
DHC-7 7-21-25

Air Conditioning - Avionic Fan Inlet Extensions
- Modification 712264
(A/C 3 thru 105)

Sep 21, 1984 Mar 22, 1985 'A'
DHC-7 7-30-4

Propeller Deicing Timer - To Replace Timers
- Modification 7/1653
(A/C 1 thru 5 and 7 thru 20)

Feb 1, 1980 May 16, 1980 'A'
DHC-7 7-57-7

Wing and Nacelle Structure - Barrel Nut Replacement
- DHC E.O. 72145
(A/C 28 thru 42 less 40)

Apr 28, 1981
DHC-7 7-27-64

Flight Controls - Rudder Restrictor Sprocket Mechanism Replacement
- Modification 7/2387
(A/C 1 thru 112)

Sep 14, 1984 Oct 2, 1987 'B'
DHC-7 7-52-35

Doors - Lower Airstair Door - Special Inspection, Rigging Check and Rectification of Door Locking Mechanism
(A/C 1 thru 112)

May 16, 1986
DHC-7 7-25-57

NOT ISSUED

DHC-7 7-34-13

Attitude Director Indicator - Improved Type
- Modification 7/1726
(A/C 1 thru 29)

Sep 11, 1981

Pages