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 1683

Bulletins RSS

Aircraftsort ascending S/B No. Title Original Issue Latest Issue
DHC-7 7-24-22

400 Hz Inverters - Deletion of Power Factor Correction Capacitors
- Modification 7/1690
(A/C 1 thru 27)

May 23, 1980
DHC-7 7-32-36

Nose Landing Gear - Emergency Extension Selector Valve - To Eliminate Valve Handle Override
- Modification 7/1891
(A/C 1 thru 31, 33, 34 and 36 thru 42)

Mar 20, 1981
DHC-7 7-71-19

Power Plant - Forward and Centre Engine Cowlings - Improved Exhaust Duct Seals
- Modification 7/2050
(A/C 1 thru 102)

Dec 17, 1982
DHC-7 7-21-17

Air Conditioning - Improved Gasper Outlet Valves
- Modification 711 924
(NC 13 thru 72)

Apr 12, 1982
DHC-7 7-29-16

Hydraulics - Engine Driven Pump - Elbow Fitting Removal and Seal Drain Replacement
-  Modification 7/2153
(A/C 13 and 82)

Aug 19, 1983 Nov 25, 1983 'A'
DHC-7 7-56-6

Windows - Addition of Direct Vision Window Guide Plate and Slider Block
- Modification 7/1963
(A/C 3 thru 100)

Mar 23, 1984
DHC-7 7-27-56

Flight Controls - Ground Spoiler Selector Valves Functional Check and Replacement
- Modification 7/2340
(A/C 1 thru 95 less 87, 88, 90, 92 and 93)

Jun 28, 1983 Sep 14, 1984 'B'
DHC-7 7-52-27

Airstair Door - Ground Lock Pin Stowage Provision Relocation
- Modification 7/1919
(A/C 3 thru 57)

Dec 4, 1981
DHC-7 7-25-49

Equipment/Furnishings - Rear Baggage Compartment - Installation of Ceiling Firescreen
- Modification 7/2499
(A/C 1 and Sub.)

Apr 18, 1986 Jul 31, 1987 'B'
DHC-7 7-34-5

Area Navigation System - Jet Electronics and Technology (J.E.T.) DAC-2000
(A/C 14 and 16 and any other A/C Equipped with DAC-2000 System)

Dec 12, 1979 Jan 27, 1980 'A'
DHC-7 7-24-38

Electrical Power - Generator Control Units U13866, U13866/1, U13866/2 and U13866/3 - Lucas Aerospace Modification 5474U (A/C 1 and Sub.)

Nov 13, 1981
DHC-7 7-32-52

Landing Gear - Nose Landing Gear
-  Actuator Hydraulic Hoses
-  Special Inspection
-  Modification 7/2272 (A/C 1 thru 94)

Jan 28, 1983
DHC-7 7-76-4

Engine Controls - Flight Idle Gate Motor Replacement
- Modification 7/1399
(A/C 1 thru 14)

Nov 28, 1980
DHC-7 7-22-3

Auto Flight - Control System -  Installation of Two Additional Relays
-  Modification7/2144 (A/C 3 thru 61)

Jan 15, 1982 Apr 12, 1982 'A'
DHC-7 7-30-12

Snow Separator Actuator - Interchangeable Replacements
- Modifications 7/1782, 7/2020 and 7/2228 (A/C 1 and Sub.)

Aug 20, 1982 Oct 28, 1988 'E'
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 7-27-72

Flight Controls - Spoiler Control Servo Assembly - Special Inspection of Attachment (Effectivity - Refer to Parker S/B 265100-27-112)

Jul 19, 1985
DHC-7 7-53-6

Fuselage Frame Bolts - Special Inspection (A/C 3 thru 7 and 9 thru 11)
7-53-7Forward Cargo Floor Panels - Ensure Security
- E.O. 74181
(A/C 7, 9 and 10)

Jul 13, 1979
DHC-7 7-26-4

Fire Protection - Fire Detection System Additional Wiring Support
- Modification 7/2234
(A/C 1 thru 113)

Jan 28, 1983
DHC-7 7-34-21

Navigation - Weather Radar - Installation Pressurized Wave Guide
- S.O.O. 7152
(A/C Serial Numbers 003 to 113 with Weather Radar System S.O.O. 7007)

Sep 24, 1982

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