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 121 - 140 of 1683

Bulletins RSS

Aircraftsort ascending S/B No. Title Original Issue Latest Issue
DHC-7 7-28-18

Fuel System - Wing Underside Flap Track Number 4 Canoe Special Inspection and Application of Fuel Containment Coating
- Modification 7/2518 (A/C 1 and Sub.)

May 16, 1986 May 8, 1987 'C'
DHC-7 7-54-11

Nacelles - Replacement of Landing Gear/ Rear Spar Diagonal Frame Members 75420012 with Members 75421508
-  Sub-Parts of Assembly 7Z5400
-  Modification Kit 7MK1500-001 (Part of Modification 7/1500) (A/C 3 thru 27)

Sep 29, 1989 Nov 3, 1989 'A'
DHC-7 7-27-30

Flight Controls - Flap Controls - Screw- jacks at Track No. 2, 3 and 4 - Lubrication Drain Plug at Gearbox
- Modifications 7/1754, 7/1755 and 7/1756
(A/C 1 thru 62)

Feb 20, 1981 Sep 25, 1981
DHC-7 7-52-2

Upper Airstair Door - To Improve Locking System Operation
- Modification 7/1225
(A/C 1, 2 and 4)

Apr 21, 1978
DHC-7 7-25-23

Furnishings - Replacement of Seat Pitch Indicators on Seat Rails
- Modification 7/1925 (A/C 3 thru 37)

Mar 20, 1981
DHC-7 7-33-3

Upper Anti-Collision Strobe Light Lightning Protection
- Modification 7/1307 (A/C 1, 2 and 4)

Jul 7, 1978
DHC-7 7-24-12

A.C. System 400 Hz - Paralleling Control Box - To Replace Modification 7/1658 (A/C 1 thru 14)

Sep 24, 1979
DHC-7 7-32-26

Nose Landing Gear Emergency Selector
- Special Inspection
(A/C 3 thru 26)

Jun 16, 1980 Oct 17, 1980 'A'
DHC-7 7-71-9

Power Plant - Serial Numbers on Lord Kinematics Corporation New and Refurbished Engine Mounting Assemblies
(All A/C)

Oct 29, 1981
DHC-7 7-21-7

Air Conditioning - Flow Control Elimination
- S.O.O. 7069
(A/C 1 and Sub. as required)

Jan 5, 1980
DHC-7 7-29-6

Hydraulic System - Piping in Wing
- Special Inspection
(A/C 1 thru 20)

Feb 22, 1980
DHC-7 7-55-7

Stabilizers - Elevators - Installation of Upper Surface Fairings, Removal of Trim Tab Hinge Cover Plates and Trimming of Lower Surface Fairings, Cover Plates and Elevators Trailing Edge Bottom Skin
- Modifications 7/2203, 7/2217 and 7/2230 (A/C 3 thru 92)

Jul 16, 1982
DHC-7 7-27-47

Flight Controls - Gust Lock System -  Special Inspection and Gust Lock Detent Plunger Rework
-  Modifications 7/2198 and 7/2323
(A/C 3 thru 112)

Sep 24, 1982 Apr 29, 1983 'B'
DHC-7 7-52-18

Airstair Door - Replacement of Cams and Cam Follower
- Modification 7/1767
(A/C 1 thru 31)

Sep 26, 1980 Jan 23, 1981 'A'
DHC-7 7-25-40

Furnishings - Flight Compartment Crew Seats - Cushion Replacement
- Modification 7/2079
(A/C 28 thru 72 incorporating SICMA Seats with 4 1/2 Inches Thick Seat Cushions)

Aug 13, 1982
DHC-7 7-33-20

Lights - Floor Proximity Emergency Escape Lighting - Installation of Electrical Jumpers
- Modification 7/2549
(A/C without Modification 7/1697 and with Modification 7/2505)

Oct 2, 1987 Apr 29, 1988 'B'
DHC-7 7-24-29

Electrics - Wirelocking of Thermal Switches for Cooling Fans
- Modification 7/1873 (A/C 1 thru 25)

Feb 13, 1981
DHC-7 7-32-43

Nose Landing Gear - Emergency System -  Hand Pump Shaft Attachment Circlip Replacement
-  Modification 7/2054 (A/C 3 thru 51)

Dec 11, 1981 Jun 10, 1983 'B'
DHC-7 7-73-2

PT6A-50 Fuel Manifold - Special Inspection
(A/C 1 thru 14)

Sep 7, 1979 Feb 18, 1983 'B'
DHC-7 7-21-24

Air Conditioning - Bleed Air Temperature Control Sense tine Drain Holes
- Modification 712320
(A/C 3 thru 112)

Apr 6, 1984

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