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 41 - 60 of 1684

Bulletins RSS

Aircraftsort ascending S/B No. Title Original Issue Latest Issue
DHC-7 7-11-7

Aircraft Operation at 44,000 lb. All Up Weight
(A/C 3 thru 7, 9 and 10) following Incorporation of Modifications 7/1271, 7/1337 and 7/1393)

Feb 15, 1979
DHC-7 V7-27-01

Solenoid Valve Flight Spoiler Servo Unloading - Screw Replacement

Oct 18, 2007
DHC-7 7-53-26

Fuselage - Installation of Additional Drain Valves in Lower Centre Fuselage
- Modification 7/2303
(A/C 1 thru 112)

Feb 17, 1984
DHC-7 7-27-11

Flap Position Indicator System -  To Introduce Close Tolerance PCU Potentiometer, Recalibrated Flap Position Indicator and Stiffer Mounting brackets for the Tailing Flap Potentiometers
-  Modification 7/1387
(A/C 1 thru 4, 6, 7 and 9)

Jun 8, 1979
DHC-7 7-34-40

Navigation - Installation of Structural Provisions for a Traffic Alert and Collision Assurance System (TCAS)
- Modification 7/2598
(A/C with Bendix/King, Collins or Honeywell TCAS Installations)

Jan 25, 1991
DHC-7 7-25-4

Furnishings - Installation of Stowage Container for Manuals
- Modification 7/1317
(A/C 1 thru 7 and 9)

Mar 9, 1979
DHC-7 7-32-87

Landing Gear - Main Landing Gear - Special Check of all Retraction Actuators Part Number 15400
(A/C 1 and Sub.)

Dec 4, 1987
DHC-7 7-92-5

Miscellaneous - Life Preservers -  Precautionary Inspection of Inflator Assembly
(A/C 1 and Sub.)

Mar 4, 1988
DHC-7 7-23-18

Communications - HF System Receiver Exciter or Power Amplifier Coupler Replacement
- Modification 7/2218
(A/C 1 thru 132 with S.O.O. 7001) (HF Communication System)

Jun 17, 1983
DHC-7 7-32-7

Main Landing Gear Shock Strut Assembly Spacer Rework
- Modification 7/1568
(A/C 1 thru 4, 6, 7, 9 and 10)

Mar 23, 1979 Apr 30, 1979 'A'
DHC-7 7-61-9

Propellers - Analytical and Major Inspection
-  Hamilton Standard S/B 61-1022
(Effectivity - See Hamilton Standard S/B 61-1022)

Oct 9, 1981 Nov 15, 1985 'B'
DHC-7 7-11-23

Labels - To Identify Rear Emergency and Baggage Doors
- Modification 7/2180 (A/C 3 thru 73)

Sep 24, 1982
DHC-7 7-28-15

Fuel - Fuel System Shut-Off Valve Replacement
- Modification 7/1880
(A/C 1 thru 132)

Jun 8, 1984
DHC-7 7-54-8

Outer Nacelles Access Panel Structure Surrounds - To Replace Existing Rubber Seals with Teflon Strips
- Modification 7/1377
(A/C 1 thru 12)

Oct 19, 1979
DHC-7 7-27-27

Flight Controls - Control Pulley Cable Guard - Special Inspection
(A/C 1 thru 31)

Dec 12, 1980 Oct 2, 1981 'A'
DHC-7 7-49-1

Starter Generator Control - Additional and Revised Wiring
- Modification 7/2528
(A/C Serial Number 102 with S.O.O. 7054)

Dec 12, 1986
DHC-7 7-25-20

Cargo Divider Bulkhead - Addition of Smoke Seal
- Modification 7/1675 (A/C 9, 10, 12, 20 and 23)

Feb 13, 1981
DHC-7 A7-32-103

Landing Gear - Special Inspection of Endcaps on Landing Gear Selector Valve (and Rectification)
- Modification 7/2742
All Serial Numbers

Sep 3, 1999
DHC-7 7-24-9

A.C. System 400 Hz Inverters - Non-Indication of Inverter Failure
(A/C 1 and Sub.)

Aug 13, 1979 May 20, 1980 'E'
DHC-7 7-32-23

Nosewheel Steering Actuator - Replacement
- Modification's 7/1695 and/or 7/1778
(A/C 1 thru 18 for Modification 7/1695)
(A/C 1 thru 20 and 22 for Modification 7/1778)

Apr 11, 1980 Jun 9, 1980 'A'

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