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 1684

Bulletins RSS

Aircraftsort ascending S/B No. Title Original Issue Latest Issue
DHC-7 7-27-50

Flight Controls - Ground Spoiler - Rigging Check -
DHC E.O. 72301
(A/C 1 and Sub.)

Jan 28, 1983
DHC-7 7-52-21

Airstair Door - Replacement of Cam Follower and Warning Switch
- Modification 7/1966
(A/C 1 thru 39)

Apr 17, 1981 Mar 11, 1983 'A'
DHC-7 7-25-43

Furnishings - Improved Aft Fuselage Under-Floor Access
- Modification 7/1352 (A/C 3 thru 27)

Jun 10, 1983
DHC-7 7-33-23

Lights - Emergency Lights Power Control Relay Installation
- Modification 7/2622
Serial Numbers 003 thru 113 less 25 and 70 With Modification 7/1697

Jul 28, 1995 Oct 20, 1995 '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 7-32-46

Tail Bumper Shaft - Special Inspection and Modification
- Modification 7/2222
(A/C 1 thru 102 less 68 and 71)

Feb 10, 1982 May 27, 1983 'A'
DHC-7 7-73-5

Engine Fuel and Control - Fuel Flow Trans. Temperature Compensation Resistor
-  Relocation and Electrical Connector Replacement
-  Modification 7/2347
(A/C 3 thru 86, 89, 91, 94 and 95)

Oct 14, 1983
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 7-30-6

Elevator Horn Deicing Heater - Thermostat Replacement
- Modification 7/1776
(A/C 1 thru 34)

Oct 31, 1980 Jan 9, 1981 'B'
DHC-7 7-57-9

Wing Structure - Spoiler Hinge Arm and Drain Seals - Change of Seal Material
- Modification 7/1683
(A/C 3 thru 27)

Nov 20, 1981
DHC-7 7-27-66

Flight Controls - Revised Elevator Trim Screw Jack Installation
- Modification 7/2393
(A/C 1 thru 102)

Jun 28, 1985
DHC-7 7-53-1

Front Fuselage - Provision for Static Port Tester
- Modification 7/1254
(A/C 1, 2 and 4)

Apr 14, 1978
DHC-7 7-25-60

Equipment/Furnishings - Wash Water System - Introduction of Additional Drain Valve
- Modification 7/2552
(A/C 1 thru 52 without Modification 7/1395)

Feb 23, 1990
DHC-7 7-34-16

VHF Navigation System - VOR 1 and VOR 2 Circuit Breaker Replacement
- Modification 7/2055
(A/C 1 thru 65 with S.O.O. 7003)

Mar 5, 1982 Jun 11, 1982 'A'
DHC-7 7-24-49

AC Electrical System - Voltage Suppressors and Relays Replacement
- Modification 7/2092 (A/C 1 thru 112)

Feb 25, 1983 Mar 22, 1985 'A'
DHC-7 7-32-63

Nose Landing Gear - Steering Actuator Anti-Rotation - Revised Arrangement
- Modification 7/2338
(A/C Serial Numbers 1 thru 86, 89, 91, 94 and 95)

Jan 20, 1984 Apr 3, 1987 'C'
DHC-7 7-77-2

Engine Instruments - To Revise Range Markings
- Modification 7/1304 (A/C 3, 4, 7 & 9)

Feb 2, 1979 Jan 23, 1981 'C'
DHC-7 7-22-14

Auto Flight - Addition of Manual Deselect Input to Automatic Pilot Disconnect Audible Alert Unit
- Modification 7/2591
(All A/C with S.O.O. 7186)

Dec 1, 1989
DHC-7 7-30-23

Ice and Rain Protection - Snow Separator Actuator - Introduction of Improved Actuator
- Modification 7/2422
(A/C 3 thru 112)

Aug 1, 1986 Sep 2, 1988 'A'
DHC-7 7-57-26

Wings - Upper Skin Structure at Outboard Nacelles - Installation of Repair Doubler
- DHC E.O. 73401
(A/C 1 and Sub.)
(CANCELLED)

Aug 30, 1985 Sep 27, 1985 'B'

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