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 61 - 80 of 1697

Bulletins RSS

Aircraftsort ascending S/B No. Title Original Issue Latest Issue
DHC-7 7-24-31

A.C. Generator Types AE2132 MK2, MK3 and MK4 - Examination of the Drive End Bearing Mounting Arrangement at Stipulated Intervals
(All A/C with Generators Type AE2132MK2, MK3, MK4 Installed)

Mar 27, 1981 Nov 13, 1981 'B'
DHC-7 7-32-79

NOT ISSUED

DHC-7 7-30-24

NOT ISSUED

DHC-7 7-21-26

Air Conditioning - Bleed Air System Shunt Duct lnstallation
- Modification 712451
(A/C 3 and Sub. - Without Modification 711909)

Nov 1, 1985 Aug 1, 1986 'A'
DHC-7 7-27-84

Flight Controls - Addition of Backing Strips to Mid Trailing Flap Seals
(A/C 1 and Sub.)

Oct 26, 1990
DHC-7 7-57-27

Wings - Flap Hinge Fairings - Installation of Kevlar Fairings with Reprofiled Lines and Improved Support Attachment
- Modification 7/2275
(A/C 1 and Sub.)

Apr 4, 1986
DHC-7 7-53-19

Fuselage - Installation of Additional Drain Valve
- Modification 7/1881
(A/C 1 thru 39)

Apr 17, 1981 Aug 14, 1981 'A'
DHC-7 7-27-60

Flight Controls - Outboard Roll Spoiler Centre Hinge Arm - Installation of Longer Bushing
- Modification 7/2324
(A/C 1 thru 86, 89, 91 and 95)

Feb 24, 1984
DHC-7 7-36-1

Pneumatic System - Aft Emergency Door - To Improve Air Supply to Door Seal
- Modification 7/1323
(A/C 3, 4, 5, 6, 7, and 9)

Jul 13, 1979 Jan 5, 1980 'A'
DHC-7 7-25-53

Equipment/Furnishings - Introduction of Smoke Mask and Storage Bag
- S.O.O. 7178
(A/C 1 and Sub.)

Apr 17, 1987
DHC-7 7-24-47

Electrical - Relocation of Resistor 3120-R2 on Relay Panel No. 4 - Modification 7/2016 (A/C 28 thru 41 - Modification 7/1452 (Digital Elapsed Time Clock)
(A/C 42 thru 92 - Modification 7/2016 by E.O. 74908 Prior to Delivery)

Aug 20, 1982
DHC-7 7-76-6

Power Plant - Introduction of Improved Propeller Reversing and Propeller Governor Push-Pull Cables
- Pratt and Whitney S/B 4053, Rev. 2
(Effectivity - See Pratt and Whitney S/B 4053, Rev. 2)

Jul 9, 1982 Apr 29, 1983 'B'
DHC-7 7-32-95

Landing Gear - Nose Landing Gear Steering
-  Reduction of Actuator Creep
-  Modification 7/2608
Serial Numbers 3 thru 113

Jul 31, 1992
DHC-7 7-31-11

Indicating and Recording - Acceleration Switch Replacement
-  Modification 7/2593
All Aircraft except Serial Number 39

Dec 6, 1996
DHC-7 7-22-12

Auto Flight - Introduction of Auto Pilot Disconnect Audible Alert Unit
- S.O.O. 7186
(A/C 3 and Sub. without Modification 7/2545)

Mar 4, 1988
DHC-7 7-28-8

Fuel System - Special Inspection of Pressure Refueling Pilot Valves
- DHC E.O. 72080
(A/C 1 thru 29)

Mar 13, 1981
DHC-7 7-61-2

Propeller Mounting Bolt Lubrication
(All A/C)

Dec 6, 1978 Apr 28, 1981 'A'
DHC-7 7-54-1

Inner Nacelles - Change of Rivets
- Modification 7/1337
(A/C 3 and 4)

Jul 4, 1978
DHC-7 7-52-8

Rear Emergency Door - Installation of Restraining Bracket and Guard Assembly
- Modification 7/1316
(A/C 1 thru 4 and 7)

Oct 25, 1979 Dec 12, 1980 'A'
DHC-7 7-26-9

Fire Protection - Lavatory Smoke Detector Switch and Indicator Light
- Modification 7/2539
(A/C 1 and Sub.)

Mar 20, 1987

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