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 81 - 100 of 1696

Bulletins RSS

Aircraft S/B No. Title Original Issue Latest Issuesort descending
DHC-7 7-21-15

Air Conditioning - Cabin Temperature and Anti - Ice Controllers - Replacement of Current Limiting Resistor With Fuse (Effectivity - See Hamilton Standard S/B 21 -2032)

Oct 2, 1981
DHC-6 6/27

Hydraulic Power Package - Installation of Relief Valve in Brake Accumulator
Mod. 6/1042
(A/C 1 thru 65)

Jun 1, 1967
DHC-6 6/350

Power Distribution Circuit Breaker Panel - Insulating Barrier Installation
Mod. 6/1612
(A/C 1 thru 510)

Jun 25, 1976
DHC-7 7-33-10

Taxi Light - Improved Lens
- Modification 7/1911
(A/C 3 thru 92)

Sep 10, 1982
DHC-6 6/230

Nacelle Structure Reinforcing
Mod. 6/1319
(A/C 136 thru 268 Less 176, 185, 186, 204, 210, 215, 219 thru 222, 224, 226, 229, 233, 251, 257, 261 thru 263, 265 and 266)

Dec 22, 1969
DHC-7 7-61-8

Propellers - Incorporation of Improved Bearing Race
-  Hamilton Standard S/B 61-1027
(Effectivity - See Hamilnto Standard S/B 61-1027)

Oct 9, 1981
DHC-6 6/270

Caution Lights Dimming Control Box
Mod. 6/1373
(A/C 1 thru 330)

Mar 5, 1971
DHC-2 TB/47

Transmittal Document for Modification Bulletin T2/2071 Fuel System - Weldon Dual Boost Pump" (Refer to Mod. Bulletin for Data)

Jan 9, 1976
DHC-7 7-32-5

Main Landing Gear Door Mechanism -  To Increase Strength at Torque Tube Centre Bellcrank/Push Rod Attachment
-  Modification 7/1455 (A/C 3 thru 12)

Mar 9, 1979
DHC-7 7-25-20

Cargo Divider Bulkhead - Addition of Smoke Seal
- Modification 7/1675 (A/C 9, 10, 12, 20 and 23)

Feb 13, 1981
DHC-6 6/150

Rudder - Left Travel Reduction - Incorporation of a New Stop
Mod. 6/1177
(A/C 1 thru 115)

Jun 7, 1968
DHC-7 7-54-7

Nacelle Aft End Fairing Doors -  To Replace Bungee Cord Spring with Steel Wire Coil Springs
-  Modification 7/1374
(A/C 1 thru 4, 6, 7, 9 and 10)

May 25, 1979
DHC-6 6/439

Airstair Door - Handle Guard Replacement
Mod. 6/1778
(A/C 1 thru 230 Incorporating S.O.O. 6025
(Airstair Door) and A/C 231 thru 810)

Oct 1, 1982
DHC-7 7-52-24

Airstair Door - To Introduce an External Handgrip
- Modification 7/1484 (A/C 1 thru 11)

Jul 3, 1981
DHC-6 6/43

Engine Intake Anti-Icing Cautionary Information
(All A/C with Air Intake De-Icing)

Aug 17, 1967
DHC-6 6/366

Introduction of Improved Voltage Regulator
Mod. 6/1636
(All A/C)

Oct 21, 1977
DHC-7 7-34-2

Automatic Direction Finder - To Introduce Loop Antenna Connector Shroud
- Modification 7/1495
(A/C 1 thru 7 and 9 thru 12)

May 4, 1979
DHC-3 3/22

Transmittal Document - Modification Bulletin 3/915 - Fuselage Upper and Lower Rotating Beacon Light Lens

Jan 10, 1975
DHC-7 7-27-43

Flight Controls - Improved Second Stage Flap Dump Selector Valve
- Modification 7/2002
(A/C 1 thru 51)

Mar 12, 1982
DHC-6 6/246

Beta Back-Up System Powerplant
Mod. 6/1282
(A/C 1 thru 310)

Jun 12, 1970

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