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 241 - 260 of 1697

Bulletins RSS

Aircraft S/B No.sort ascending Title Original Issue Latest Issue
DHC-7 7-73-3

Fuel Flow Transmitter - Replacement -
Modifications 7/1781 and 7/1946
(A/C with Fuel Flow Transmitters TFF2911-2 or TFF2911-3)

Jun 19, 1981
DHC-7 7-73-2

PT6A-50 Fuel Manifold - Special Inspection
(A/C 1 thru 14)

Sep 7, 1979 Feb 18, 1983 'B'
DHC-7 7-73-1

Fuel Flow Transmitter - Special Inspection (A/C 3, 4, 7 and 9)

Dec 6, 1978 Aug 21, 1981 'A'
DHC-7 7-71-9

Power Plant - Serial Numbers on Lord Kinematics Corporation New and Refurbished Engine Mounting Assemblies
(All A/C)

Oct 29, 1981
DHC-7 7-71-8

Power Plant - Front Engine Mount -  Elimination of Dowel Pin
-  Modification 7/2025
(A/C 1 thru 59)

May 15, 1981
DHC-7 7-71-7

Engine - Rear Cowlings - To Overcome Seal Damage
- Modification 7/1537
(A/C 1 thru 52)

Nov 28, 1980 Sep 18, 1981 'A'
DHC-7 7-71-6

Power Plant - To Reroute Engine Accessories Seal Drains
- Modification 7/135
(A/C 3 thru 12)

Aug 14, 1981 Nov 20, 1981 'A'
DHC-7 7-71-5

Forward Engine Firewall Rework -  To Accommodate Pratt and Whitney Synchrophaser Trimmer Head Housing -  Modification 7/1760
(A/C 1 thru 25)

Nov 28, 1980
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 7-71-3

Engine Cowling - To Rework Aft Panel
- Modification 7/1354
(A/C 1 thru 12)

Mar 30, 1979
DHC-7 7-71-24

Power Plant - Fuel Control Unit Drain -  Separation from Starter Generator Drain
-  Modification 7/2603
Serial Numbers 3 thru 113

Oct 25, 1991
DHC-7 7-71-23

Power Plant - Improved Engine Mount Assembly - Incorporation of Shim
- Lord S/B SM6204-71-01

Oct 25, 1985
DHC-7 7-71-22

Power Plant - Relocation of Engine rain Line
- Modification 7/2411
(A/C 3 thru 105 less 104 and 106 with S.O.O. 7025)

Oct 5, 1985
DHC-7 7-71-21

Power Plant - Replacement of Rear Fireseal Bolt
- Modification 7/2322
(A/C 3 thru 112)

Feb 24, 1984
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 7-71-2

Power Plant - Closure Plate for A.C. Generator Mounting Pad
- Modification 7/1339
(A/C 1 thru 4, 6, 7 and 9 thru 12)

Dec 15, 1978 Dec 12, 1980 'B'
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 7-71-18

Power Plant - Engine Fuel Flow Drain Relocation
- Modification 7/2175
(A/C 3 thru 86, 89, 91, 94 and 95 with Modification 7/1356)

Jan 21, 1983 Oct 12, 1984 'B'
DHC-7 7-71-17

Power Plant - Electrical Cable Assembly and Connectors Replacement
- Modification 7/2196
(A/C 1 thru 112)

Sep 24, 1982 Apr 18, 1984 'C'
DHC-7 7-71-16

Power Plant - Improved Small Combustion Chamber Exit Duct Assembly - Pratt and Whitney S/B 6071
(All A/C with PT6A-50 Engines Prior to Serial Number PC-E86433)

Jun 18, 1982

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