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 121 - 140 of 1697

Bulletins RSS

Aircraftsort ascending S/B No. Title Original Issue Latest Issue
DHC-7 7-32-30

Main Landing Gear Wheels - Insert and Drive Lug Repair Limits
(All A/C)

Sep 5, 1980
DHC-7 7-27-69

Wings - Flight and Ground Spoiler Hinge Assembly Bushing Installation
- Modification 7/2260
(A/C 1 thru 112)

Mar 22, 1985 Apr 3, 1987 'A'
DHC-7 7-29-10

Hydraulic Engine Driven Pump - Shaft Sleeve (Vespel) and a New Port Cap Introduced
- Modifications 7/1957 and 7/2048
(A/C 3 thru 50 for Modifications 7/1957 and 7/2048 A/C 51 thru 92 for Modification 7/2048 only)

Apr 26, 1982 Nov 12, 1982 'A'
DHC-7 7-26-1

Fire Protection System - Inspection of Fire Bottle Cartridge Connector
(A/C 1 thru 22)

Apr 11, 1980
DHC-7 7-23-16

Communications - Audio Control Panel -  Total Audio Recording Provision
-  Modification 7/2283
(All DHC-7 A/C with Cockpit Voice Recorder S.O.O. 7022 Installed)

Feb 4, 1983
DHC-7 7-11-21

Hydraulic Reservoir - Label Change - To Prevent Overfilling
- Modification 7/1915
(A/C 3 thru 92)

Oct 2, 1981
DHC-7 7-34-41

Navigation - Aircraft Performance Limitations for Traffic Alert and Collision Avoidance System II (TCAS II) Advisory Planning
Model 102 and Model 103 Aircraft operating into or within the United States

Jul 19, 1991 Jul 1, 1994 'A'
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 7-61-15

Propellers - Extension Dome Assembly
-  Increased Radius On Bellcrank Support
-  Hamilton Standard S/B 61-1031
(Effectivity - See Hamilton Standard S/B 61-1031)

Jun 25, 1982 Nov 16, 1984 'B'
DHC-7 7-32-88

Landing Gear - Nose Gear Steering Actuator
-  Increased Anti-Cavitation Provisions
-  Modification 7/2526
(A/C 1 thru 113)

Mar 4, 1988
DHC-7 7-54-14

Nacelles - Main Landing Gear Drag Strut Attachment - Special Inspection and Rectification or Replacement of Bearing Housing Retaining Bolts
- Modification 7/2262
(Inspection - A/C 1 thru 64 less 58) (Modification 7/2262 - A/C 1 thru 113)

Aug 12, 1983
DHC-7 7-32-46

Tail Bumper Shaft - Special Inspection and Modification
- Modification 7/2222
(A/C 1 thru 102 less 68 and 71)

Feb 10, 1982 May 27, 1983 'A'
DHC-7 7-30-7

Windscreen Washer - To Improve Washer Coverage
- Modification 7/1789
(A/C 1 thru 35 with S.O.O. 7039)

Feb 20, 1981
DHC-7 7-27-6

Wing Ground Spoilers - To Inspect, Replace and/or Repair Hinge Arm
- Modification 7/1456
(A/C 1 thru 4, 7 and 9)

Sep 1, 1978 Jan 5, 1980 'B'
DHC-7 7-24-8

Electrical System - External Power Connector and Limiter - Introduction of Copper Bus Bars
- Modification 7/1472 (A/C 1 thru 12)

Jun 22, 1979
DHC-7 7-24-68

Electrical Power - Special Inspection and 02 Aug 91 Rectification of AC Generator Feeder Cables for
Chafing Inside AC Contactor Boxes All aircraft

Aug 2, 1991
DHC-7 7-21-3

Direct Vision Window - To Introduce Seal at Air Conditioning Duct Outlet
- Modification 711230
(A/C 1, 2 and 4)

Mar 23, 1979
DHC-7 7-52-1

Baggage Door - To Introduce Door Open Warning Microswitch to Handle
- Modification 7/1336
(A/C 4)

May 26, 1978
DHC-7 7-76-12

Engine Controls - Nacelles - New Fireseal Installation of Control Cable Penetrations in Firewall
- Modification 7/2519
(A/C 3 thru 107)

Nov 14, 1986
DHC-7 7-71-13

Power Plant - Introduction of Improved Power Turbine Blades -  Pratt and Whitney S/B 4064R1
(Effectivity - See Pratt and Whitney S/B 4064R1)

Feb 12, 1982

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