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 1581 - 1600 of 1683

Bulletins RSS

Aircraftsort descending S/B No. Title Original Issue Latest Issue
DHC-7 7-76-1

Engines Controls - Microswitch Mounting Improvement for Flight Idle Gate Operating Mechanism
- Modification 7/1527
(A/C 1 thru 22)

Dec 21, 1979 Feb 25, 1980 'A'
DHC-7 7-21-30

Air Conditioning - Insulation - Removal of Black Insulation
All aircraft

Jul 6, 1994
DHC-7 7-30-9

Engine Intake Deicing Boots - Bleed Air Supply Line - Improved Clamping
- Modification 7/1993 (A/C 1 thru 92)

Jan 8, 1982
DHC-7 7-57-12

Left and Right-Hand Wing Ground Spoiler Actuator Attachment Bracket - Inspection and Replacement of Rivets with Bolts
- Modification 7/1827
(A/C 1 thru 30)

Jan 15, 1982
DHC-7 7-27-69

Wings - Flight and Ground Spoiler Hinge Assembly Bushing Installation
- Modification 7/2260
(A/C 1 thru 112)

Mar 22, 1985 Apr 3, 1987 'A'
DHC-7 7-53-3

Rear Fuselage - To Improve Stringer Attachments to Frames at Stations X596.75 and X714.50
- Modification 7/1271
(A/C 4, 8 and 9)

Jul 13, 1979
DHC-7 7-26-1

Fire Protection System - Inspection of Fire Bottle Cartridge Connector
(A/C 1 thru 22)

Apr 11, 1980
DHC-7 7-34-18

Aircraft Overspeed Warning System -  Alternate Overspeed Warning Switch and Mounting Rework
-  Modification 7/1997
(A/C 1 thru 62)

Aug 13, 1982
DHC-7 7-24-51

Electrical Power - Aircraft Main Batteries Replacement
- Modification 7/2171
(A/C 3 thru 112 with Modification 7/1263 Electrical System - Installation of Batteries in Forward Avionics Bay)

Aug 19, 1983 Mar 22, 1985
DHC-7 7-32-65

Landing Gear - Normal Brake System Hydraulic Tube Assembly - Inspection and Forward Wing/Fuse Access Panel Rework
- Modification 7/2327
(A/C 3 thru 83, 85, 86, 89 and 94)

Apr 6, 1984
DHC-7 7-77-4

Engine/Propeller Indicating - Improved Tachometer Generator Assembly
- Modification 7/2152
(A/C 1 thru 92 & all Spare Engines)

Apr 30, 1982
DHC-7 7-22-16

Not issued

DHC-7 7-30-25

Ice and Rain Protection - Snow Separator Actuator - Change of Stroke Limit
- Modification 7/2540
(A/C with ITT Actuator LA11A2113-1 or -2

Jul 31, 1987
DHC-7 7-57-28

Wings - Application of Corrosion Inhibitor to Upper Wing Skin and Heat Shields
- Modification 7/2506
(A/C with Modification 7/2414)

Apr 17, 1987
DHC-7 7-11-01

Airstair Sub-Door - Installation of New Labels
- Modification 7/1269 (A/C 1, 2 and 4)

Jan 17, 1978 Mar 21, 1978 'A'
DHC-7 7-27-85

Flight Controls - Replacement of Flap Overspeed brake
- Modification 7/2600
(A/C 1 and Sub.)

May 10, 1991
DHC-7 7-53-20

Upper Airstair Door - Improve Access to Microswitch
- Modification 7/1865
(A/C 1 thru 72)

Sep 25, 1981 Feb 19, 1982 'A'
DHC-7 7-27-5

Flap Overspeed brake Assembly
- Modification 7/1392
(A/C 1 thru 4, 7 and 9)

Aug 18, 1978
DHC-7 7-34-34

Navigation - Ground Proximity Warning Computer (G.P.W.C.) - Reconfiguration of Altitude Rate Circuitry
(A/C with GPWC Part Number 965-0476-088, Prior to Serial Number 5568)

Sep 19, 1986 Nov 20, 1987 'B'
DHC-7 7-24-67

Nacelle Longeron / D.C. External Power Ground Stud - Rework to Minimize Corrosion
-  Modification 7/2599
(DHC-7 A/C with Modification 7/2577)

Jun 29, 1990

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