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 1561 - 1580 of 1697

Bulletins RSS

Aircraftsort descending S/B No. Title Original Issue Latest Issue
DHC-7 7-71-7

Engine - Rear Cowlings - To Overcome Seal Damage
- Modification 7/1537
(A/C 1 thru 52)

Nov 28, 1980 Sep 18, 1981 'A'
DHC-7 7-30-17

Ice and Rain Protection - Windshield Wiper Motor/Converter Access Rework
-  Modification 7/2273
(A/C 3 thru 112)

Jul 6, 1984
DHC-7 7-23-19

Communications - Attendant's Interphone System Call Light Rework
- Modification 7/1672 (A/C 1 thru 18)

Sep 16, 1983
DHC-7 7-27-55

Flight Control System - Flap Duplicate Drive Torque Tubes - Improved Steady Bearings
- Modification 7/2321
(A/C 3 thru 102)

Oct 14, 1983 Sep 14, 1984 'A'
DHC-7 7-55-4

Horizontal Stabilizer - To Increase Strength of Elevator Control Lock Stops
- Modification 7/1360
(A/C 1 thru 4, 6, 7 and 9)

Aug 24, 1979
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 7-27-56

Flight Controls - Ground Spoiler Selector Valves Functional Check and Replacement
- Modification 7/2340
(A/C 1 thru 95 less 87, 88, 90, 92 and 93)

Jun 28, 1983 Sep 14, 1984 'B'
DHC-7 7-55-5

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

Nov 6, 1981
DHC-7 7-27-78

Flight Controls - Introduction of Improved Ground Spoiler Selector Valve No. 1
- Modification 7/2484
(A/C 3 and Sub)

Mar 24, 1989
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 7-25-49

Equipment/Furnishings - Rear Baggage Compartment - Installation of Ceiling Firescreen
- Modification 7/2499
(A/C 1 and Sub.)

Apr 18, 1986 Jul 31, 1987 'B'
DHC-7 7-52-2

Upper Airstair Door - To Improve Locking System Operation
- Modification 7/1225
(A/C 1, 2 and 4)

Apr 21, 1978
DHC-7 7-33-3

Upper Anti-Collision Strobe Light Lightning Protection
- Modification 7/1307 (A/C 1, 2 and 4)

Jul 7, 1978
DHC-7 7-71-24

Power Plant - Fuel Control Unit Drain -  Separation from Starter Generator Drain
-  Modification 7/2603
Serial Numbers 3 thru 113

Oct 25, 1991
DHC-7 7-31-5

Flight Data Recorder System - Jumper Wire In Caution Lights System Control Box -  Special Inspection
(A/C 3 thru 53 with S.O.O. 7021 or 7110)

Oct 2, 1981
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 7-57-4

Wing - Outboard Nacelle Joint -  To Reinforce Lower Wing Structure and Outboard Nacelle
-  Modification 7/1645
(A/C 1 thru 14 and 17)

May 23, 1980 Sep 10, 1982 'A'
DHC-7 7-28-2

Fuel System - Auxiliary Pump Lightning Protection - Special Inspection and Rectification
(A/C 3 thru 8)

Oct 19, 1979
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 7-26-4

Fire Protection - Fire Detection System Additional Wiring Support
- Modification 7/2234
(A/C 1 thru 113)

Jan 28, 1983

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