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 1621 - 1640 of 1697

Bulletins RSS

Aircraftsort descending S/B No. Title Original Issue Latest Issue
DHC-7 7-11-10

Powerplant - Snow Separator - Visual Position Indicator
- Modification 7/1529
(A/C 1 thru 16)

Mar 7, 1980 Apr 18, 1980 'A'
DHC-7 7-30-24

NOT ISSUED

DHC-7 7-57-30

Wings - Flap Track No. 4 Canoes
-  Installation of Fuel Drain
-  Modification 7/2536
(A/C Serial Number 3 and Sub.)

Mar 6, 1987 May 8, 1987 'A'
DHC-7 7-34-19

Navigation - Flight Director Instrument System - Modification to Repair Nylon Gear and Gear Mounting Post Failures (A/C Equipped with Sperry Flight Systems Radio Deviation Indicators 2592920
Serial Number XXXX4899 and below)

Apr 8, 1982 Nov 19, 1982 'A'
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 7-27-18

Flaps - Power Control Unit Assembly -  Replacement of Solenoid Valve Retaining Screws -
Menasco S/B 27-13
(A/C 1 and Sub.)

Mar 7, 1980
DHC-7 7-53-22

Front Fuselage - Sealing of Gaps in Flight Compartment
- Modification 7/1959
(A/C 1 thru 62)

Sep 10, 1982
DHC-7 7-32-66

Landing Gear - Tail Bumper Support Fitting
-  Steel Saddle Clip Installation
-  Modification 7/2386
-  Modification 7/2386 (A/C 1 thru 112) (A/C 1 thru 112)

Jun 29, 1984 Mar 29, 1985 'A'
DHC-7 7-79-4

Oil Cooler Drain Valve Installation
-  Modification 7/1536 (A/C 3 thru 23)

Oct 16, 1981
DHC-7 7-25-11

Overhead Stowage Bin Door - Inspection for Fouling (A/C 1 and Sub.)

Oct 3, 1980
DHC-7 7-23-21

Communications - Cockpit Voice Recorder -  Change of Power Supply
-  Modification 7/2431
(A/C 3 thru 27 without Modification 7/1602 and A/C 28 and Sub. with Modification 7/1602)

Jan 24, 1986
DHC-7 7-11-26

Placards and Markings - Windshield Washer System - To Identify Permissible Fluid Types
- Modification 7/2312
(A/C 001 thru 103 incorporate de Havilland S.O.O. 7039 Windshield Washer System)

Mar 31, 1983
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 7-61-5

Propellers - To Introduce Thicker Propeller Shaft Flange and Longer Propeller Mounting Bolts
- Modification 7/1663
(A/C 1 thru 25 and 27)

Mar 20, 1981
DHC-7 7-34-35

Navigation - Ground Proximity Warning System - Installation of Steep Approach Adapter
- S.O.O. No. 7181
(A/C 1 and Sub.)

Mar 6, 1987 Oct 30, 1987 'B'
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
DHC-7 7-27-34

Flap Control System - Flap Screwjack Tracks No. 2 and 3 - To Introduce an Improved Locking Feature for Aft Bearing Nut and Greasing Provision
- Modifications 7/1591 and 7/1590 (A/C 3 thru 27 - Modification 7/1591; 3 thru 29 - Modification 7/1590)

Sep 4, 1981
DHC-7 7-54-4

Inner Nacelle - To Introduce New Main Landing Gear Frame Bolts
- Modification 7/1501
(A/C 1 thru 13)

Jul 27, 1979 Sep 24, 1982 'C'
DHC-7 7-32-82

Landing Gear - Welded Assemblies for Main Landing Gear Door Mechanism Mounting Bracket
- Modification 7/2512 (A/C 1 and Sub.)

Oct 17, 1986 Dec 12, 1986 'A'
DHC-7 7-25-27

Furnishings - Flight Compartment Door -  Addition of Latch for Use with Observer's Seat
-  Modification 7/1749
(A/C 1 thru 34 with S.O.O. 7026)

Nov 20, 1981

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