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 201 - 220 of 1697

Bulletins RSS

Aircraft S/B No.sort ascending Title Original Issue Latest Issue
DHC-7 7-92-2

Insulating Diode with Metallic End Cap (Effectivity - See Sperry Technical Newsletter 29-9000-03)

Nov 28, 1980
DHC-7 7-92-1

Cherrymax Rivets, Riveters and Pulling Heads - Conversion form Cherrylock Riveters

Oct 31, 1980
DHC-7 7-82-4

Water Methanol Injection System
-  To Introduce Orifice Assemblies to Facilitate Calibration
-  Modification 7/1549 and 7/1984 (A/C 4, 6 and 9 for Modifications 7/1549 and 7/1984)
(A/C 1 thru 36 less A/C 4, 6 and 9 for Modification 7/1984 only -  for A/C with S.O.O. 7025)

Sep 18, 1981 Jan 15, 1982 'A'
DHC-7 7-82-3

Water Methanol System - Replacement of Tank Quantity Transmitter
-  Modification 7/1532
(A/C 4, 6 and 9)

May 23, 1980
DHC-7 7-82-2

Instruments - Water/Methanol System - To Increase Minimum Quantity Indication
-  Modification 7/1718
(A/C 4, 6 and 9)

Apr 3, 1980
DHC-7 7-82-1

Water Methanol Quantity Indicator
-  Addition of Limit Marks on Face
-  Modification 7/1260
(A/C 1, 2 and 4 with S.O.O. 7025)

May 26, 1978
DHC-7 7-80-2

Electrical - Starter Generator - Addition of Torque Tightening Valves to Terminal Block Connectors - Lucas Aerospace Modification 5134CG
(A/C 1 and Sub.)

Sep 17, 1982
DHC-7 7-80-1

Starter Generators - To Revise Brush Spring Pressure Setting if Lucas Modification 5215B (S/B 24-649) has been Incorporated
(Effectivity - See Lucas Aerospace S/B 24-721)

Nov 28, 1980
DHC-7 7-79-6

Oil - Oil Cooler Drain Valve Replacement
-  Modification 7/2409
(A/C 1 thru 112)

Jun 28, 1985
DHC-7 7-79-5

Oil System - Engine Oil Low Pressure Warning Switch Replacement
-  Modification 7/2096
(A/C 1 thru 83 and all Spare Engines)

Apr 16, 1982 Sep 24, 1982 'A'
DHC-7 7-79-4

Oil Cooler Drain Valve Installation
-  Modification 7/1536 (A/C 3 thru 23)

Oct 16, 1981
DHC-7 7-79-3

Oil Cooler Exhaust Ducts - To Reinforce
-  Modification 7/1566
(A/C 1 thru 19)

Aug 15, 1980
DHC-7 7-79-2

Engine Oil Low Pressure Warning Switch
-  To Introduce Switch with Higher Setting
- Modifications 7/1465, 7/1876 and E.O. 72047
(A/C 1 thru 33)

Feb 2, 1979 Jan 30, 1981 'C'
DHC-7 7-79-1

Oil Breather Lines - To Relocate Discharge Outlet
-  Modification 7/1256
(A/C 1 thru 5 and 7)

Feb 16, 1979 May 28, 1979 'A'
DHC-7 7-78-3

Exhaust - Engine Exhaust Duct Fairing
-  Improved Method of Attachment
-  Modification 7/2462
(A/C 3 & Sub. with Modification 7/2187)

Oct 11, 1985
DHC-7 7-78-2

Engine Exhaust - Rework or Replacement of Exhaust Duct Fairings
-  Modification 7/2187
(A/C 1 thru 112)

Nov 25, 1983 Sep 15, 1989 'B'
DHC-7 7-78-1

Exhaust System - Replacement of Stack Fairing Assemblies
-  Modification 7/1593
(A/C 1 thru 27)

Jun 13, 1980
DHC-7 7-77-6

Oil - Oil Cooler Drain Valve Replacement
- Modification 7/2409
Serial Numbers 1 thru 112
CANCELLED

May 24, 1995 Jul 5, 1991 'A'
DHC-7 7-77-5

Engine Indicating - Torque Pressure Transmitter Vibration Isolators Replacement
- Modification 7/2232
(A/C 1 thru 113)

Apr 19, 1984
DHC-7 7-77-4

Engine/Propeller Indicating - Improved Tachometer Generator Assembly
- Modification 7/2152
(A/C 1 thru 92 & all Spare Engines)

Apr 30, 1982

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