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 61 - 80 of 1683

Bulletins RSS

Aircraftsort ascending S/B No. Title Original Issue Latest Issue
DHC-7 7-57-28

Wings - Application of Corrosion Inhibitor to Upper Wing Skin and Heat Shields
- Modification 7/2506
(A/C with Modification 7/2414)

Apr 17, 1987
DHC-7 7-11-01

Airstair Sub-Door - Installation of New Labels
- Modification 7/1269 (A/C 1, 2 and 4)

Jan 17, 1978 Mar 21, 1978 'A'
DHC-7 7-27-85

Flight Controls - Replacement of Flap Overspeed brake
- Modification 7/2600
(A/C 1 and Sub.)

May 10, 1991
DHC-7 7-53-20

Upper Airstair Door - Improve Access to Microswitch
- Modification 7/1865
(A/C 1 thru 72)

Sep 25, 1981 Feb 19, 1982 'A'
DHC-7 7-27-5

Flap Overspeed brake Assembly
- Modification 7/1392
(A/C 1 thru 4, 7 and 9)

Aug 18, 1978
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 7-24-67

Nacelle Longeron / D.C. External Power Ground Stud - Rework to Minimize Corrosion
-  Modification 7/2599
(DHC-7 A/C with Modification 7/2577)

Jun 29, 1990
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 7-82-3

Water Methanol System - Replacement of Tank Quantity Transmitter
-  Modification 7/1532
(A/C 4, 6 and 9)

May 23, 1980
DHC-7 7-23-12

Communications - Addition of Interphone/ Transmitter Switch to Flight Compartment Right-Hand Sidewall
- Modification 7/1969
(A/C 1 thru 92 less 54, 62 and 66)

Mar 12, 1982 Jun 10, 1983 'B'
DHC-7 7-32-1

Landing Gear Hydraulic System - To Reduce Back Pressure in Gear Up-Line
- Modification 7/1265
(A/C 1, 2 and 4)

Dec 15, 1977 Feb 17, 1978 'A'
DHC-7 7-61-3

Propeller - Synchrophase Control Unit Type Change
- Modification 7/1582
(A/C 1 thru 27)

Aug 15, 1980 Oct 24, 1980 'A'
DHC-7 7-11-17

Furnishings - Externally Serviced Toilet, Addition of Caution Label
- Modification 7/1922
(A/C 26, 28, 29, 30, 32, 33 and 34)

Apr 17, 1981
DHC-7 7-28-9

Fuel System - Solenoid Valve Replacement
- Modification 7/1752
(A/C 1 thru 72)

May 8, 1981 Jul 9, 1981 'A'
DHC-7 7-54-2

Inboard and Outboard Nacelles -  To Provide Access to Upper Mounting of Propeller Synchrophaser Actuator
-  Modification 7/1216
(A/C 1, 2 and 4)

Nov 20, 1978
DHC-7 7-27-21

Flap System - Power Control Unit Assembly- Inspection and Replacement of Mounting Lug Retaining Screws
-  Modification 7/1787
(All A/C with Menasco Flap PCU 24000-3, 24000-5 or 24000-103 having Serial Numbers MC006 - MC035)

Apr 25, 1980 Mar 6, 1981 '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 7-25-14

Furnishings - Reduction of Crew Seat Travel
- Modification 7/1750
(A/C 1 thru 27)

Nov 21, 1980
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 A7-32-98

Landing Gear - Extension and Retraction - Special Inspection of Downlock Microswitch Actuating Lever on Nose Landing Gear
Serial Numbers 3 thru 113

Jan 29, 1993

Pages