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 121 - 140 of 1684

Bulletins RSS

Aircraftsort ascending S/B No. Title Original Issue Latest Issue
DHC-7 7-53-2

Flight Compartment - Installation of Sun Visors
- Modification 7/1234
(A/C 1, 2, 3, 4 and 7)

Sep 1, 1978
DHC-7 7-25-61

Equipment/Furnishings - Overhead Bins -  Replacement of Doorater Assembly with a Gas Spring
-  Modification 7/2224
(A/C 3 and sub. with S.O.O. 7042)

Apr 25, 1990
DHC-7 7-34-17

Navigation - R/NAV Interface Box
-  Addition of Capacitor
-  Modification 7/2014
(A/C 3 thru 57 with Area Navigation System S.O.O. 7016)

Mar 5, 1982
DHC-7 7-24-50

Electrical Power - DC External/Internal Power Transfer - Introduction of Time Delay Relays
- Modification 7/2184
(A/C 3 thru 90 and 94)

DHC-7 7-32-64

Nose Landing Gear - Wheel Bearing Water Shield
- Modification 7/2348 (A/C 1 thru 112)

Feb 24, 1984 Sep 13, 1985 'A'
DHC-7 7-77-3

Instruments - Propeller R.P.M. Indicators -  Revision to Range Markings
-  Modification 7/1905
(A/C 1 thru 30)

Oct 17, 1980 Sep 18, 1981 'B'
DHC-7 7-22-15

Not issued

DHC-7 7-30-24

NOT ISSUED

DHC-7 7-57-27

Wings - Flap Hinge Fairings - Installation of Kevlar Fairings with Reprofiled Lines and Improved Support Attachment
- Modification 7/2275
(A/C 1 and Sub.)

Apr 4, 1986
DHC-7 7-10-1

Ground Support Equipment - Improved
Engine Intake and Exhaust Covers
- Modification 7/2013
(A/C 1 thru 72)

Feb 19, 1982
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 7-53-19

Fuselage - Installation of Additional Drain Valve
- Modification 7/1881
(A/C 1 thru 39)

Apr 17, 1981 Aug 14, 1981 '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'

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