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 1541 - 1560 of 1697

Bulletins RSS

Aircraftsort descending S/B No. Title Original Issue Latest Issue
DHC-7 7-11-2

External Fuel System Markings - Label Revision at Pressure Refueling Point
- Modification 7/1296 (A/C 1, 2 and 4)

DHC-7 7-28-17

Fuel System - Replacement Fuel Tank Pressure Relief Dump Valve
- Modification 7/2170
(A/C 28 thru 73 less 54, 62 and 66. A/C with S.O.O. 7123 or without Modification 7/1397 are not affected)

Jan 18, 1985
DHC-7 7-25-29

Furnishings - Toilet Door Lock Mechanism Rework
- Modification 7/2063
(A/C 3 thru 52 less 51)

Nov 6, 1981
DHC-7 V7-57-01

Fuel System - Fuel Tank Pressure Relief Valve Removal of Protective Coating- SFAR Compliance - Modification No V7-M5701 (All Aircraft)

Jul 19, 2007 Sep 18, 2009 'B'
DHC-7 7-34-34

Navigation - Ground Proximity Warning Computer (G.P.W.C.) - Reconfiguration of Altitude Rate Circuitry
(A/C with GPWC Part Number 965-0476-088, Prior to Serial Number 5568)

Sep 19, 1986 Nov 20, 1987 'B'
DHC-7 7-76-3

PT6A Engine - Replacement of Control Cables Incorporating Insulation of Sleeves
- Modification 7/1508
(A/C 1 thru 27)

May 9, 1980
DHC-7 7-53-33

Fuselage - Special Inspection for Disbonding of Unriveted Stringers on Fuselage Skin
(All A/C)

May 31, 1989 Jun 9, 1989 'A'
DHC-7 7-32-81

Landing Gear - Flap/Landing Gear Warning Horn Circuit Revision
- Modification 7/2502
(A/C with Modification 7/2202)

Jun 13, 1986
DHC-7 7-23-13

Communications - Improved Mask Microphone
- Modification 7/2188
(A/C 1 thru 57, 59 thru 70 and 72 thru 76)

Jun 18, 1982
DHC-7 7-32-25

Nose Landing Gear Emergency System
-  Selector Handle Rework
-  Modification 7/1736
(A/C 3 thru 26)

Jun 13, 1980 Oct 17, 1980 'B'
DHC-7 7-27-52

Flight Controls - Replacement of Trailing Flap Potentiometer with Fixed Resistors
- Modification 7/2093
(A/C 3 thru 89 and 91)

Apr 15, 1983 Mar 20, 1987 'B'
DHC-7 7-11-18

Labels - Additional Requirements for the Airstair Door, Emergency Exit, Toilet and Baggage Compartment
- Modification 7/1872
(A/C 1 thru 39)

Apr 3, 1981
DHC-7 7-29-5

Hydraulic System - Shuttle Valve Replacement
- Modification 7/1534
(A/C 1 thru 27)

Feb 15, 1980
DHC-7 7-25-45

Furnishings - Relocation of Crew Seat Inertia Reel Lockout Levers
- Modification 7/2388
(A/C 1 thru 97)

May 4, 1984
DHC-7 7-61-16

Propellers - Blades - Inspection of Blade Pin for Looseness and Improved Retention of Blade Pin in the Blade Shank
- Hamilton Standard S/B 61-1039
(Effectivity - See Hamilton Standard S/B 61-1039)

Aug 13, 1982 Oct 29, 1982 'A'
DHC-7 7-39-1

Barometric Standby Altimeter
-  Co-pilot's Installation
-  Modification 7/1522
(A/C 1, 2, 3 and 7 thru 12)

Sep 28, 1979
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 7-54-15

Nacelles - Left Hand Outboard Nacelle -  Stall Warning Flap Transmitter Access Cover Installation
-  Modification 7/1329
(A/C 3 thru 27)

Apr 19, 1984
DHC-7 A7-32-97

Landing Gear - Initial Inspection and Test of Hydraulic Selector Valve Sterer
Part Number 57420 or 57420-3
Serial Numbers 3 thru 110 without Modification 7/2516

Nov 10, 1992
DHC-7 7-24-4

Powered Flight Control Shut-off Switches Replacement
- Modification 7/1301 (A/C 1, 2 and 4)

Jun 23, 1978

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