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 1561 - 1580 of 1684

Bulletins RSS

Aircraftsort descending S/B No. Title Original Issue Latest Issue
DHC-7 7-24-57

Electrical Power - Distribution Cable Lug Ends Inspection for Integrity
(A/C 3 and Sub.)

Dec 21, 1983 Dec 14, 1984
DHC-7 7-32-71

Main Landing Gear - Wheel and Brake Assembly - Flange Thickness Inspection and Brake Increased Wear Limits (B.F. Goodrich Service Letter 1348 and 1349)

Apr 19, 1985
DHC-7 7-79-1

Oil Breather Lines - To Relocate Discharge Outlet
-  Modification 7/1256
(A/C 1 thru 5 and 7)

Feb 16, 1979 May 28, 1979 'A'
DHC-7 7-23-2

Avionics - Voice Recorder Attenuation
- Modification 7/1311
(A/C 1, 2 and 4)

May 18, 1979
DHC-7 7-31-2

Digital Flight Recorder - Addition of Reflection Strips, Add Jumper Between U8-13 and U8-14 and Relocation of R2 and R3 to Prevent Interference
(Effectivity - See Sundstrand S/Bs 573A-31-19, 573A-31-20 and 573A-31-21)

Nov 28, 1980
DHC-7 7-57-34

Wings - Foreflap - Introduction of New Leading Edge Ribs
- Modification 7/2532 (All Aircraft)

Sep 4, 1992
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

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