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 for DHC Aircraft

Manual Status List – DHC-2 to DHC-7

To obtain a subscription to a digital library, please contact ATP:

For more information on digital technical publications, please contact csps-tp@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 CSPS Technical Publications Coordinator at csps-tp@vikingair.com.

Displaying 1581 - 1600 of 1697

Bulletins RSS

Aircraft S/B No. Title Original Issue Latest Issuesort descending
DHC-6 6/507

Wings - Aileron Assembly - Special Inspection and Rectification of the Aileron Mass Balance Weight Retention Channels for Corrosion
(A/C having 5 Years or more of Service)

Dec 15, 1989 Jan 26, 1990 'C'
DHC-6 6/508

Parking and Mooring - Gust Lock Assembly
Mods. 6/1676 and 6/1726 (This S.B.Supersedes S.B. Nos. 6/383 and 6/391)
(A/C 1 thru 696 Less 691 and 694)

Dec 15, 1989 Jan 31, 1990 'C'
DHC-6 6/505

Autoflight - Introduction of Collins APS-65 Automatic Flight Control System
S.O.O. 6188
(A/C 231 and Sub.)

Jul 28, 1989 Mar 2, 1990 'A'
DHC-7 7-32-83

Landing Gear - Replacement of Hydraulic Selector Valve
- Modification 7/2516 (Supersedes Modification 7/2491)
(A/C 3 thru 110)

Nov 21, 1986 Mar 2, 1990 'B'
DHC-6 6/362

Wing Box Replacement
Mod. 6/1630
(All A/C)

Nov 18, 1977 Mar 16, 1990 'C'
DHC-7 7-32-86

Landing Gear - Installation of Packer at Main Gear Emergency Release Bracket
- Modification 7/2531
(A/C with Modification 7/1832)

Sep 11, 1987 Jun 1, 1990 'B'
DHC-6 6/486

Wings - Wing Interior and Main Spar Lower Cap Angles - Installation of Inspection Holes in Lower Wing Skin
Mod. 6/1869 (Post-Mod. 6/1883)
(All A/C with 10 Years from Date of Manufacture or 12,000 Flight Hours)

Dec 12, 1986 Jun 8, 1990 'D'
DHC-6 6/511

Flight Controls - Special Inspection for Distortion of Elevator Quadrant and Cracks in Quadrant Mounting Bracket Assembly Lugs
(All A/C)

Apr 20, 1990 Jun 22, 1990 'A'
DHC-6 6/380

Main Landing Gear Leg - Precautionary Inspection and Reprotection
Mod. 6/1660
(A/C 1 thru 603)

Dec 20, 1978 Jun 22, 1990 'C'
DHC-7 7-33-19

Lights - Passenger Cabin Aisle
-  Conversion to Fluorescent Lights
-  Modification 7/2444
(A/C 3 thru 112)

May 15, 1987 Jun 29, 1990 'A'
DHC-7 7-57-15

Wing Structure - Leading Flap Upper Surface Skin - Addition of Dished Plate
- Modification 7/2221
(A/C 3 thru 152)

Jun 11, 1982 Dec 7, 1990 'A'
DHC-7 7-57-33

Wings - Special Inspection and Removal of Fuel Tank Foam Wedge Blocks
- Modification 7/2586 and 7/2587
(A/C 1 thru 27 less 11 without Modification 7/1367)

Jul 21, 1989 Apr 26, 1991 'B'
DHC-7 7-30-28

Ice and Rain Protection - Stall Warning Transducer Heat - Introduction Heat Failure Indication
- Modification 7/2566
(A/C 3 thru 113)

Oct 28, 1988 May 31, 1991 'A'
DHC-7 7-77-6

Oil - Oil Cooler Drain Valve Replacement
- Modification 7/2409
Serial Numbers 1 thru 112
CANCELLED

May 24, 1995 Jul 5, 1991 'A'
DHC-7 A7-32-94

Landing Gear - Emergency Down Release Cables - Inspection for Corrosion and Replacement of Cable Assemblies
- Modification 7/2609 All Aircraft

Sep 3, 1991 Nov 15, 1991 'A'
DHC-6 6/500

Wings - Front Attachment Adapters - Introduction of Steel Adapter Fittings
Mod. 6/1887
(A/C 1 thru 838)

Jan 22, 1988 Dec 20, 1991 'D'
DHC-6 6/181

Elevator - Rudder Pulley Bracket Redesigned
Mod. 6/1262
(A/C 2 thru 222)

Mar 26, 1969 Dec 20, 1991 'B'
DHC-6 6/342

Wing Struts
Mod. 6/1581
(A/C 1 thru 462, 464, 465, 468, 469, 472, 473, 474, 478 and 481)

Feb 23, 1976 Dec 20, 1991 'A'
DHC-6 6/295

Wing Rear Spar Cap - Special Inspection for Cracks, Reinforcing and Replacement
Mod. 6/1301
(A/C 1 thru 330)

Oct 6, 1972 Dec 20, 1991 'D'
DHC-6 6/298

Overhead Console Control Quadrants - Special Inspection and New Material Replacement Quadrants
Mod. 6/1467
(A/C 1 thru 420)

Apr 4, 1973 Dec 20, 1991 'D'

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