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 41 - 60 of 1698

Bulletins RSS

Aircraftsort ascending S/B No. Title Original Issue Latest Issue
DHC-7 7-21-8

Air Conditioning - Toilet Compartment
- E.O. 70927
(A/C 1 thru 27)

Mar 28, 1980
DHC-7 7-54-17

Nacelles - Inboard Nacelles - Main Landing Gear Door Mechanism Spigot Replacement
- Modification 7/2538
(A/C 3 thru 27)

Apr 17, 1987
DHC-7 7-27-76

Flight Controls - Elevator Trim Jack -  To Introduce a Water Drain Hole
-  Modification 7/2489
(A/C 3 and Sub.)

Jan 17, 1986 Jan 30, 1987 'B'
DHC-7 7-27-19

Aileron Tab Hinge Fitting Clearance - Special Inspection and Rework
- E.O. 74301
(A/C 1 thru 7, 9 and 10)

Apr 11, 1980
DHC-7 7-25-12

Furnishings Cargo Door Sidewall -  To Improve Weather Protection
-  Modification 7/1637
(A/C 7, 9, 10, 11, 12, 15, 20 and 23)

Sep 5, 1980
DHC-7 7-35-5

Oxygen - Installation of Portable First Aid Oxygen Bottle (200 Liters) in Aft End of Cabin
- S.O.O. 7175
(A/C 3 and Sub.)

Nov 28, 1986
DHC-7 7-24-29

Electrics - Wirelocking of Thermal Switches for Cooling Fans
- Modification 7/1873 (A/C 1 thru 25)

Feb 13, 1981
DHC-7 7-71-15

Power Plant - Torquemeter Cylinder - Pratt and Whitney S/B 4066
(All A/C with PT6A-50 Engines Prior to Serial Number PC-E86272)

Jun 18, 1982
DHC-7 A7-32-94

Landing Gear - Emergency Down Release Cables - Inspection for Corrosion and Replacement of Cable Assemblies
- Modification 7/2609 All Aircraft

Sep 3, 1991 Nov 15, 1991 'A'
DHC-7 7-31-3

Communications - Cockpit Voice Recorder Model AV-557B Installation or Provisions for Underwater Locating Device (ULD)
- S.O.O. 7073
(A/C 1 and Sub. as required)

Jan 16, 1981
DHC-7 7-21-24

Air Conditioning - Bleed Air Temperature Control Sense tine Drain Holes
- Modification 712320
(A/C 3 thru 112)

Apr 6, 1984
DHC-7 7-56-2

Windscreen Installation - To Replace Flush Head Screws with Hex Head Screws
- Modification 7/1207 (A/C 4)

Aug 14, 1978
DHC-7 V7-27-02

Solenoid Valve Second Stage Flap Dump - Screw Replacement

Oct 18, 2007
DHC-7 7-27-35

Flying Controls - Flap System Duplicate Drive - To Introduce Double Universal Joint at Angle Gearbox
- Modification 7/1744 (A/C 1 thru 52)

Oct 23, 1981
DHC-7 7-25-28

Rear Baggage Compartment -  Floor Bulkhead Gap Sealing
-  Modification 7/1506
(A/C 1 thru 10)

Oct 9, 1981
DHC-7 7-73-7

Engine Fuel and Control - Modification of Water Separator and Filter
- Bendix Corp. S/B 135a
(A/C 1 and Sub. and all PT6-50 Engines in Spares Holdings)

Mar 9, 1984
DHC-7 7-52-6

Cargo Door - Push Rod Check Cable Installation
- Modification 7/1486
(A/C 7 and 9)

Jul 27, 1979
DHC-7 7-24-45

Electrical Power - Lucas A.C. Generator AE2132 MK3 and MK4 - To Introduce Washer Between Tail End Bearing and Cupwasher (MK4) and to Introduce New Cupwasher (MK3) - Lucas Aerospace Modifications 5176 and 5170CG
(A/C with A.C. Generator AE2132 MK3 or MK4)

Jun 25, 1982
DHC-7 7-33-7

Emergency Lights - Revised Switching Logic
- Modification 7/1697 (A/C 3 thru 27)

Oct 17, 1980
DHC-7 7-32-8

Main Landing Gear - Special Inspection
(A/C 1 thru 11)

Apr 30, 1979

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