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 221 - 240 of 1697

Bulletins RSS

Aircraft S/B No. Title Original Issue Latest Issuesort descending
DHC-6 6/224

NOT ISSUED

DHC-3 V3/0004

NOT ISSUED

DHC-6 6/144

Flap Controls - Centre Fuselage - New Push Rod Assembly - Introduction
Mod. 6/1085
(A/C 1 thru 105)

May 27, 1968
DHC-7 7-23-21

Communications - Cockpit Voice Recorder -  Change of Power Supply
-  Modification 7/2431
(A/C 3 thru 27 without Modification 7/1602 and A/C 28 and Sub. with Modification 7/1602)

Jan 24, 1986
DHC-7 7-34-17

Navigation - R/NAV Interface Box
-  Addition of Capacitor
-  Modification 7/2014
(A/C 3 thru 57 with Area Navigation System S.O.O. 7016)

Mar 5, 1982
DHC-6 6/515

Auto Flight - Additional Guard Plate of Aileron Servo Cable Assembly
(All A/C with Electrical Autopilot Installation)

Jan 31, 1992
DHC-2 TB/56

Non-Approved Components & Installations

Dec 16, 1983
DHC-6 6/346

Nose Landing Gear
Mod. 6/1562
(A/C 1 thru 490)

Apr 9, 1976
DHC-7 7-29-20

Hydraulic Power - Replacement of Quantity Limiting Valves
-  Modification 7/2610
Serial Numbers 3 thru 113

Mar 20, 1992
DHC-6 V6/0057

Engine Controls - Binding of the FCU push rod end bearings (Series 400).

Jul 26, 2021
DHC-7 7-25-19

Furnishings - Toilet Compartment -  Addition of Access Panel
-  Modification 7/1694 (A/C 1 thru 16) (17 thru 35 under de Havilland E.O. 74459)

Mar 27, 1981
DHC-7 7-53-34

Fuselage - Special Inspection and Rectification for Cleat and Fittings (Cargo A/C Only)
(A/C 7, 9 thru 12, 20, 21, 23, 31, 63, 72, 75, 81, 86, 94, 100 and 104 thru 106)

Apr 6, 1990
DHC-6 6/266

Auto-Pilot - To Provide Static Warning Light Valve and Disengagement
E.O. 66578
(A/C 84, 88, 117, 120, 123 and 124)

Dec 4, 1970
DHC-6 6/241

Instruments - Edison Type Engine Torque Pressure Indicators
Mod. 6/1310
(A/C 231 thru 255)

May 8, 1970
DHC-6 6/16

Hartzell Propeller - Corrosion of Low Stop Rods - Rectification
(All A/C)

Apr 26, 1967
DHC-6 6/161

Static Inverter Improved
Mod. 6/1016
(A/C 1 thru 35)

Sep 23, 1968
DHC-6 6/531

NOT ISSUED

DHC-7 7-21-8

Air Conditioning - Toilet Compartment
- E.O. 70927
(A/C 1 thru 27)

Mar 28, 1980
DHC-7 7-27-42

Flight Controls - Improved Ground Spoiler Selector Valve
- Modification 7/2003
(A/C 1 thru 51)

Mar 12, 1982
DHC-7 7-61-17

Propellers - Installation of Metal Sheathing to Blades and Spinners
- Modification 7/2440
(A/C 1 thru 107, less 54, 62 and 66)

Nov 15, 1985

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