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 141 - 160 of 1698

Bulletins RSS

Aircraftsort ascending S/B No. Title Original Issue Latest Issue
DHC-7 7-32-27

Landing Gear Anti-Skid Valves
- Modification 7/1836
(A/C 3 thru 52)

Jun 16, 1980 Apr 17, 1981 'A'
DHC-7 7-25-10

Oxygen System - Insulation Blanket for Bottles
- Modification 7/1724
(A/C 1 thru 24)

May 30, 1980 Jan 23, 1981 'A'
DHC-7 7-29-7

Hydraulic System - Hydraulic Reservoir Special Test
(A/C 1 thru 27)

Aug 1, 1980 Nov 26, 1982 'B'
DHC-7 7-34-10

Avionics - ADF Sense Antenna
-  Installation of Mast Gaskets
-  Modification 7/1799
(A/C 1 thru 47 with S.O.O. 7004)

Apr 10, 1981
DHC-7 7-82-1

Water Methanol Quantity Indicator
-  Addition of Limit Marks on Face
-  Modification 7/1260
(A/C 1, 2 and 4 with S.O.O. 7025)

May 26, 1978
DHC-7 7-24-16

Electrical Harness - Main and Nose Landing Gear - To Improve Reliability
- Modification 7/1693 (A/C 1 thru 14)

Mar 7, 1980
DHC-7 7-32-57

Nose Landing Gear - Improved Steering Electronic Control Module
-  Modification 7/1917
(A/C 1 thru 82, also Refer to Menasco S/B 32-30)

Jun 17, 1983
DHC-7 7-61-14

Propellers - Blade Trailing Edge Repair
-  Hamilton Standard S/B 61-1038
(Effectivity - See Hamilton Standard S/B 61-1038)

Jun 25, 1982
DHC-7 7-21-11

Conditioned Air System - Water Separator Insulation
- Modification 711 630
(A/C 1 thru 34)

Sep 5, 1980
DHC-7 7-54-13

Inboard Nacelles - Front Spar Frame Replacement
(A/C 3 thru 27)

Aug 12, 1983 Apr 15, 1988 'B'
DHC-7 7-27-33

Flight Controls - Rudder Pedal Adjustment Mechanism - To Introduce Anti-Rotation Washer
- Modification 7/1954
(A/C 1 thru 40)

Aug 21, 1981 Oct 2, 1981 'A'
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 7-25-26

Furnishings - Sherwood Toilet Unit -  Overflow Tray Installation
-  Modification 7/1485 (A/C 1 thru 14)

Apr 17, 1981
DHC-7 7-30-3

Snow Separator - Torque Tube - To Introduce Strengthened Torque Tube Spindle and Operating Levers
- Modification 7/1556
(A/C 1 thru 14)

Jan 25, 1980
DHC-7 7-34-26

Navigation - Pitot Tube Replacement
- Modification 7/2233 (A/C 1 thru 96)

Apr 29, 1983 Apr 6, 1984 'A'
DHC-7 7-24-32

Electrical Power - Busbar Protection Unit ZA29702 - Lucas Aerospace Modifications 5409U and 545OU
All A/C with above unit Installed)

Mar 27, 1981
DHC-7 7-32-73

Landing Gear - Nose Wheel Cracking - Special Inspection
(A/C 1 and Sub.)

May 24, 1985
DHC-7 7-71-11

Power Plant - Compressor Bleed Valve Assembly - Pratt and Whitney S/B 4067 (Effectivity - See Pratt and Whitney S/B 4067)

Feb 19, 1982 Jun 25, 1982 'A'
DHC-7 7-21-27

Air Conditioning - Replacement of Dual Gasper Fans
(A/C 1 and Sub. with S.0.0.7080)

Sep 13, 1985
DHC-7 7-55-8

Horizontal Stabilizer - Elevator Gust Lock - Jo-Bolt Special Inspection and Replacement
(A/C Serial Numbers 4 and Sub.)

Sep 30, 1983 Mar 22, 1985 'B'

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