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 141 - 160 of 1683

Bulletins RSS

Aircraftsort ascending S/B No. Title Original Issue Latest Issue
DHC-7 7-27-13

Flap Control System - Primary Torque Tube - Special Inspection
(A/C 1 thru 14)

Sep 19, 1979 Oct 15, 1982 'A'
DHC-7 7-34-42

Navigation - Horizontal Situation Indicator (HSI) Power Supply -  Revised Circuit Breaker Connection
-  Modification 7/2612 Serial Numbers 1 thru 113 with Standard Option Only 7014-1

Jul 3, 1992 Mar 17, 1995 'A'
DHC-7 7-25-6

Furnishings - To Provide New Stowage Containers for Improved Food Table Assemblies
- Modification 7/1334 (A/C 1 thru 7, 9 and 10)

Apr 30, 1979 Jan 18, 1980 'A'
DHC-7 7-32-89

Landing Gear - Nose Gear Shock Strut Assembly - Upper Bearing Replacement
- Modification 7/2557
(A/C 1 thru 111)

Sep 2, 1988
DHC-7 7-23-20

Communications - Cockpit Voice Recorder
- Tape Deck Housing Connector Check and Replacement (The Cockpit Voice Recorder used in De Havilland Dash 7 A/C is Model AV-557B Part Number 980-6005-055)

Mar 9, 1984
DHC-7 7-32-9

Main Landing Gear - Replacement of Shock Strut Assembly Upper Bearing
- Modification 7/1574
(A/C 1 thru 7, 9 and 10)

May 18, 1979
DHC-7 7-61-11

Propellers - Blade Retention in Barrel
-  Rework of Inner Bearing Race Set
-  Hamilton Standard S/B 61-1029
(Effectivity - See Hamilton Standard S/B 61-1029)

Mar 26, 1982
DHC-7 7-11-25

Placards and Markings - Installation of Aircraft Manufacturer's Supplementary Label to Designate Aircraft Model Number Change
- Modification 7/2098
(Series 100 - 4, 5, 6 and Series 101 Cargo A/C 7, 9 and 10)

Sep 24, 1982
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 7-54-10

Nacelles - Propeller Restraint - Ground Equipment Receptacle
- Modification 7/2007
(A/C 1 thru 62)

Feb 12, 1982
DHC-7 7-27-29

Flight Control System - Flap Screwjack Tracks No. 2 and 3 - Special Inspection for Locking of End Attachment
(A/C 3 thru 36 with 7/1590 and/or 7/1591)

Jan 19, 1981 Aug 21, 1981 'A'
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 7-25-22

Baggage Compartment/Cabin Bulkhead -  Installation of Seals
-  Modification 7/1369 (A/C 1 thru 12)

Mar 27, 1981 Dec 4, 1981 'A'
DHC-7 7-33-2

Emergency Aisle Light Cover Assemblies - Change of Material
-  Modification 7/1303
(A/C 1, 2 and 4)

Jun 2, 1978
DHC-7 7-24-11

A.C. System - 400 Hz Inverter Failure Indication
(A/C 1 and Sub.)

Sep 12, 1979 May 20, 1980 'A'
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 7-71-8

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

May 15, 1981
DHC-7 7-21-6

-  Addition of Emergency Ventilation Air Intake
- Modification 7/1493
(A/C 1 thru 17)

Nov 23, 1979 Aug 12, 1983
DHC-7 7-29-5

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

Feb 15, 1980
DHC-7 7-55-5

Horizontal Stabilizer - Improved Lightening Hole Covers
- Modification 7/1913
(A/C 1 thru 40)

Nov 6, 1981

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