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 1683

Bulletins RSS

Aircraftsort ascending S/B No. Title Original Issue Latest Issue
DHC-7 7-27-39

Flight Controls - Trailing Flap Actuators -  Improved Retention of Actuator Lock Plunger
-  Modification 7/2067
(A/C 3 thru 66)

Jan 29, 1982 Aug 27, 1982 'A'
DHC-7 7-52-11

Airstair Door - To Increase Clearance at Door Stop Spindles
- Modification 7/1554
(A/C 1 thru 4, 6, 7, 9 and 10)

Oct 5, 1979
DHC-7 7-25-32

Window Reveal Lighting - Addition of Aluminum Foil Tape to Panels
- Modification 7/2080
(A/C 4, 5, 6, 8, 13, 14, 16 thru 19, 21, 25 thru 30, 33, 36 thru 40, 42, 43, 44, 47, 48,49, 51, 52, 53, 56 thru 59)

Dec 4, 1981
DHC-7 7-33-12

Lights - Lower Anti-Collision Light Ground Wire Retermination
- Modification 7/1992
(A/C 1 thru 92)

Feb 25, 1983
DHC-7 7-24-21

Avionics - V.H.F. Navigation System -  To Change Power Source for Excitation to Radio Magnetic Indicators
-  Modification 7/1678 (A/C 1 thru 19)

May 30, 1980
DHC-7 7-32-35

Wheel Bearing Tightening - Revised Instructions
- B.F. Goodrich S/B 392
(A/C 1 and Sub.)

Jul 9, 1982
DHC-7 7-71-18

Power Plant - Engine Fuel Flow Drain Relocation
- Modification 7/2175
(A/C 3 thru 86, 89, 91, 94 and 95 with Modification 7/1356)

Jan 21, 1983 Oct 12, 1984 'B'
DHC-7 7-21-16

Air Conditioning - Bleed Air Temperature Control Valve - Improved Mounting Installation
- Modification 7/1720 (A/C 1 thru 22)

Dec 4, 1981
DHC-7 7-29-15

Hydraulic Power - Engine Driven Pump -  Configuration Change
-  Modification 7/2246
(A/C 3 thru 99)

Apr 29, 1983
DHC-7 7-56-5

Windows - Flight Compartment Direct Vision Window - Improved Seal
- Modification 7/1962
(A/C 1 thru 102 less Serial Numbers 27, 49, 54, 62, 63 and 72)

Jun 4, 1982
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 7-52-26

Airstair Door - Forward Handrail - Addition of Rubbing Strip
- Modification 7/2089
(A/C 3 thru 35) (A/C 36 thru 92 will be Modified to DHC E.O. 74867)

Nov 6, 1981
DHC-7 7-25-48

Furnishings - Flight Attendant's Seat Restraint Harness Increased Length
- Modification 7/2267
(A/C 3 thru 107)

May 3, 1985
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 7-34-5

Area Navigation System - Jet Electronics and Technology (J.E.T.) DAC-2000
(A/C 14 and 16 and any other A/C Equipped with DAC-2000 System)

Dec 12, 1979 Jan 27, 1980 'A'
DHC-7 7-24-38

Electrical Power - Generator Control Units U13866, U13866/1, U13866/2 and U13866/3 - Lucas Aerospace Modification 5474U (A/C 1 and Sub.)

Nov 13, 1981
DHC-7 7-32-52

Landing Gear - Nose Landing Gear
-  Actuator Hydraulic Hoses
-  Special Inspection
-  Modification 7/2272 (A/C 1 thru 94)

Jan 28, 1983
DHC-7 7-76-4

Engine Controls - Flight Idle Gate Motor Replacement
- Modification 7/1399
(A/C 1 thru 14)

Nov 28, 1980
DHC-7 7-22-3

Auto Flight - Control System -  Installation of Two Additional Relays
-  Modification7/2144 (A/C 3 thru 61)

Jan 15, 1982 Apr 12, 1982 'A'
DHC-7 7-30-12

Snow Separator Actuator - Interchangeable Replacements
- Modifications 7/1782, 7/2020 and 7/2228 (A/C 1 and Sub.)

Aug 20, 1982 Oct 28, 1988 'E'

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