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, DHC-2 to DHC-7

View LIST

To obtain a subscription to a digital library, please contact ATP:

For more information on digital technical publications, please contact technical.publications@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 Technical Publications Administrator.

Displaying 81 - 100 of 1684

Bulletins RSS

Aircraftsort ascending S/B No. Title Original Issue Latest Issue
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-7 7-24-50

Electrical Power - DC External/Internal Power Transfer - Introduction of Time Delay Relays
- Modification 7/2184
(A/C 3 thru 90 and 94)

DHC-7 7-32-64

Nose Landing Gear - Wheel Bearing Water Shield
- Modification 7/2348 (A/C 1 thru 112)

Feb 24, 1984 Sep 13, 1985 'A'
DHC-7 7-77-3

Instruments - Propeller R.P.M. Indicators -  Revision to Range Markings
-  Modification 7/1905
(A/C 1 thru 30)

Oct 17, 1980 Sep 18, 1981 'B'
DHC-7 7-22-15

Not issued

DHC-7 7-30-24

NOT ISSUED

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 7-10-1

Ground Support Equipment - Improved
Engine Intake and Exhaust Covers
- Modification 7/2013
(A/C 1 thru 72)

Feb 19, 1982
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 7-53-19

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

Apr 17, 1981 Aug 14, 1981 'A'
DHC-7 7-27-4

Roll Spoiler Actuator - Relief Valve Replacement
- Modification 7/1383
(A/C 1 thru 4)

Jun 9, 1978
DHC-7 7-34-33

Navigation - Ground Proximity Warning System - To Remove False Failure Alarm
- Modification 7/2461
(A/C with Sundstrand MK 11 Ground Proximity Warning System Installed)

May 16, 1986 Oct 31, 1986 'A'
DHC-7 7-24-66

Electrical Power - Special Inspection of Main Landing Gear Frame Bolts and Relocation of
External Power Ground Studs
- Modification 7/2577
(All A/C)

Oct 28, 1988 Jun 23, 1989 'B'
DHC-7 7-32-80

Landing Gear - Replacement of Restrictors/ Fittings in Selector Valve and In Emergency Extension Valve
- Modification 7/2495
(A/C 3 thru 116)

May 16, 1986 Apr 3, 1987 'B'
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 7-23-11

Communications - VHF Transceiver -  To Reduce Interference
-  Modifications 7/1840 and 7/1885
(A/C 1 thru 39 with S.O.O. 7002) (VHF Communication System)

Jan 15, 1982
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 7-61-2

Propeller Mounting Bolt Lubrication
(All A/C)

Dec 6, 1978 Apr 28, 1981 'A'
DHC-7 7-11-16

Toilet Compartment - Addition of Call Button Label
- Modification 7/1884
(A/C 1 thru 29)

Mar 20, 1981
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

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