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 101 - 120 of 1684

Bulletins RSS

Aircraft S/B No. Title Original Issue Latest Issuesort ascending
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-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-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-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 6/362

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

Nov 18, 1977 Mar 16, 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 6/508

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 6/507

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 6/469

Wings - Wing Restraint Tension Rod Installation
Mod. 6/1752
(A/C 1 thru 820 Less 813 and 817)

Mar 22, 1985 Jan 12, 1990 'E'
DHC-7 7-31-10

Indicating and Recording - Flight Data Recorder - Rework Caution Light Circuit
- Modification 7/2523
(A/C 3 and Sub.)

Mar 20, 1987 Dec 1, 1989 'B'
DHC-6 6/491

Fuel - Wing Fuel Tank Gauges - Inspection and Rectification or Replacement
Mods. 6/1861 and 6/1875
(A/C with S.O.O. 6095 Incorporated)

Apr 17, 1987 Dec 1, 1989 'A'
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 7-33-22

Lights - Emergency Battery Lighting Power Supply Change
(A/C with 60-1321-1 and 60-3844-1 Power Supplies)

Jun 9, 1989 Oct 13, 1989 'A'
DHC-2T 2/46

Miscellaneous -Aeroquip Hoses Type 601- Precautionary Inspection and Rectification

Feb 9, 1989 Oct 6, 1989 'C'
DHC-3 3/47

Miscellaneous - Aeroquip Hoses Type 601 - Precautionary Inspection and Rectification

Feb 3, 1989 Oct 6, 1989 'C'
DHC-6 6/506

Miscellaneous - Aeroquip Hoses Type 601 - Precautionary Inspection and Rectification
(All A/C)

Feb 3, 1989 Oct 6, 1989 'C'
DHC-7 7-92-6

Miscellaneous - Aeroquip Hoses Type 601 -  Precautionary Inspection and Rectification
(A/C 1 and Sub.)

Feb 3, 1989 Sep 29, 1989 'C'
DHC-7 7-78-2

Engine Exhaust - Rework or Replacement of Exhaust Duct Fairings
-  Modification 7/2187
(A/C 1 thru 112)

Nov 25, 1983 Sep 15, 1989 'B'

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