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 101 - 120 of 1697

Bulletins RSS

Aircraftsort ascending S/B No. Title Original Issue Latest Issue
DHC-7 7-25-29

Furnishings - Toilet Door Lock Mechanism Rework
- Modification 7/2063
(A/C 3 thru 52 less 51)

Nov 6, 1981
DHC-7 7-24-14

Electrical System - To Provide Independent Control of Inner and Outer Landing Lights
- Modification 7/1335 (A/C 3 thru 27)

Jan 5, 1980
DHC-7 7-21-9

Bleed Air System - To Install Diverter Valve
- S.O.O. 7066
(A/C 1 and Sub. as required)

May 30, 1980 Oct 2, 1981 'A'
DHC-7 7-32-18

Main Landing Gear - Upper Drag Strut
- Special Inspection (A/C 1 thru 27)

Feb 6, 1980 Oct 1, 1982 'C'
DHC-7 7-71-4

PT6A-50 Engine - Front Mount
-  Special Inspection
-  Modification 7/1669
(A/C 1 thru 7, 9 thru 11 and 13)

Dec 14, 1979
DHC-7 7-39-4

Instruments - Turn and Slip Indicator -  To Compensate for 90_ Instrument Panel Slope
-  Modification 7/1577
(A/C 1 thru 27 less 23)

May 9, 1980
DHC-7 V7-28-03

Fuel - Refuel/Defuel - Wiring Change at Refuel/Defuel Panel for Pressure Relief Valve (PRV) - SFAR 88 Compliance

Oct 12, 2007 Sep 18, 2009 'A'
DHC-7 7-27-52

Flight Controls - Replacement of Trailing Flap Potentiometer with Fixed Resistors
- Modification 7/2093
(A/C 3 thru 89 and 91)

Apr 15, 1983 Mar 20, 1987 'B'
DHC-7 7-55-1

Vertical Stabilizer - Upper Strobe Light Mounting Rework
- Modification 7/1280
(A/C 1 thru 7)

Jun 2, 1978
DHC-7 A7-32-100

Landing Gear - Inspection of Main Landing Gear Upper Lockstrut (and rectification)
All Aircraft

Jul 7, 1993 Aug 30, 1993 'A'
DHC-7 7-25-45

Furnishings - Relocation of Crew Seat Inertia Reel Lockout Levers
- Modification 7/2388
(A/C 1 thru 97)

May 4, 1984
DHC-7 7-24-30

Electrics - Addition of Pitot Heat Power Supply Indication
- S.O.O. 7084
(A/C 1 thru 38)

Feb 13, 1981 Mar 27, 1981 'A'
DHC-7 7-21-25

Air Conditioning - Avionic Fan Inlet Extensions
- Modification 712264
(A/C 3 thru 105)

Sep 21, 1984 Mar 22, 1985 'A'
DHC-7 7-32-34

Nose Landing Gear - Shock Strut Assembly -  Lubrication of Upper Roller Bearing and Rework of Inner Cylinder
-  Modification 7/1935
(A/C 1 and Sub. with Nose Landing Gear Serial Numbers 001 thru 036)

Jan 9, 1981 Aug 14, 1981 'A'
DHC-7 7-71-20

Power Plant - Exhaust Case Drain -  Special Inspection and Rectification
-  Modification 7/2394
(A/C 1 and Sub.)

Jan 26, 1984 Mar 17, 1995 'D'
DHC-7 7-52-12

Nose Landing Gear Doors - Increased Diameter Hinge Pins
- Modification 7/1487
(A/C 1 thru 7, 9 and 10)

Nov 16, 1979
DHC-7 7-29-14

Hydraulic System - Outboard Nacelles -  Tube Assembly Replacement and Additional Clamp Installation
-  Modification 7/1835 (Serial Number 3 thru 22)
-  Modification 7/1845 (Serial Number 3 thru 30)

Sep 17, 1982
DHC-7 7-27-68

Flight Controls - Trailing Flap Selector Solenoid Valve Suppression Diode
- Modification 7/2401
(A/C 3 thru 112 with Modification 7/2093)

Jan 18, 1985
DHC-7 7-56-7

Windows - Flight Compartment
Direct Vision Window - Improved Roller Installation in Window Track
- Modification 7/2613 All Aircraft

Oct 29, 1992 Jun 23, 1995 'A'
DHC-7 7-33-13

Lights - Wing Tips - Installation of Dual Lights on Shock Mounts
- Modification 7/2410
(A/C 1 thru 112)

Oct 11, 1985

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