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

Aircraft S/B No. Title Original Issue Latest Issuesort descending
DHC-7 7-28-20

Fuel - Pressure Relief and Dump Valve -  Installation of New Switch Assembly, Gaskets and Seals
-  Modification 7/2580
(A/C with Pressure Relief and Dump Valve Part Number 2800015-101 Installed)

Mar 10, 1989
DHC-6 6/374

Float Sealing and Venting (All Canadian aircraft Products 12000, 12000A, B and C Model Floats)

May 19, 1978
DHC-7 7-34-20

RNAV System - Additional Relay Installation
- Modification 7/2185
(A/C 14, 16, 21, 25, 27, 36, 37, 38, 39, 42, 43, 52, 53, 56, 65, 71, 74, 76, 78 and 80)

Apr 23, 1982
DHC-7 7-26-10

Fire Protection - Introduction of Alternative Automatic Fire Extinguisher, above Waste Container in Lavatory
- Modification 7/2550
(A/C 1 thru 110)

May 22, 1987
DHC-7 7-22-13

Auto Flight - Auto Pilot Disconnect Audible Alerter - Change of Power Source - Modification 8/2578
(A/C with S.O.O. 7186)

Jan 20, 1989
DHC-6 6/294

Magnetic Direction Indicators - Calibration Placard
(A/C 1 thru 302 and 311 thru 343)

Jun 8, 1972
DHC-7 7-32-67

Landing Gear - Installation of Main Wheel Brake Unit `Fluidtronics' Hydraulic Unions
- Modification 7/2354
(A/C 1 thru 112)

Sep 14, 1984
DHC-7 7-24-60

Electrical Power - A.C. System 400 Hz
-  Replacement of Paralleling Control Box
-  Modification 7/2459 (A/C 1 thru 107)

Nov 29, 1985
DHC-6 6/241

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

May 8, 1970
DHC-6 6/52

Horizontal Stabilizer - Leading Edge Reinforced to Prevent Ice Damage
Mod. 6/1089
(A/C 1 thru 50)

Oct 16, 1967
DHC-6 6/161

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

Sep 23, 1968
DHC-2 2/42

Not applicable

DHC-7 7-61-6

Propellers - Removal and Replacement of Propeller Extension Dome Assemblies or Dome Extensions
-  Hamilton Standard Alert S/B A23
(Effectivity - See Hamilton Standard Alert S/B A23)

Mar 13, 1981
DHC-7 7-32-28

Tail Bumper - To Increase Strength of Installation
- Modification 7/1293
(A/C 1 thru 12)

Sep 5, 1980
DHC-2 TB/22

Tail Ski - Combination Type - To Introduce Extension

Apr 22, 1968
DHC-6 6/494

Wing Strut Assemblies - Continuing Integrity
(All A/C)

Oct 23, 1987
DHC-7 7-54-5

Inboard Nacelles - To Provide Access Hole for Flap Screw Jack Rear Attachment
- Modification 7/1440 (A/C 1, 2, 3 and 6 thru 12)

Feb 23, 1979
DHC-7 7-29-8

Roll Spoiler Hydraulic Piping - Replacement of Pressure and Return Pipes
- DHC E.O. 72082
(A/C 21 thru 29)

Oct 17, 1980
DHC-7 7-34-36

Navigation - Conversion of Radio Altimeter Receiver - Transmitter
- Modification 7/2544
(A/C 3 thru 108)

May 22, 1987
DHC-7 7-27-14

Flying Controls - Fore Flap Actuator Assemblies - To Improve Low Temperature Performance
- Modifications 7/1642, 7/1643 and 7/1644 (A/C 1 thru 17)

Nov 30, 1979

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