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 141 - 160 of 1684

Bulletins RSS

Aircraft S/B No. Title Original Issue Latest Issuesort descending
DHC-7 7-21-12

Cabin Pressurization Control and Drainage System - To Overcome Freezing in Severe Cold Conditions
- Modification 711 652
(A/C 1 thru 39)

Mar 20, 1981
DHC-6 6/88

Flap/Elevator - Trim Cables - Nylon Cover Introduction
Mod. 6/1127
(A/C 1 thru 95)

Jan 24, 1968
DHC-7 7-29-11

Hydraulic System - Rudder Actuator -  Installation of Heavier Wall Pressure Tube Assembly on Vertical Stabilizer
-  Modification 7/2236
(A/C 21 thru 73 less 53, 58, 68 and 71)

Apr 23, 1982
DHC-6 6/424

Power Plant - Improved Compressor Bleed Valve Assembly - To Introduce P & WC S/B 1251
(A/C 231 and Sub.)

Apr 23, 1982
DHC-6 6/08

Voltage Regulator - lntroduction of Improved
Mod. 6/1017
(A/C 1 thru 20 and 22)

Mar 10, 1967
DHC-6 6/09

Rudder - Upper Fairing - Redesigned
Mod. 6/1013
(AIC 1 thru 6, 8 and 9)

Mar 10, 1967
DHC-6 6/345

Inboard Trailing Flap
Mod. 6/1556
(A/C 1 thru 510)

Apr 2, 1976
DHC-7 7-52-23

Airstair Door - To Improve Seal Deflation System
- Modification 7/1868 (A/C 1 thru 45 less 36)

Jun 15, 1981
DHC-7 7-25-45

Furnishings - Relocation of Crew Seat Inertia Reel Lockout Levers
- Modification 7/2388
(A/C 1 thru 97)

May 4, 1984
DHC-6 6/265

Fuel System Ejectors
Mod. 6/1392
(A/C 1 thru 310)

Oct 30, 1970
DHC-2 TB/40

Transmittal Document for Modification Bulletin T2/2065 "Turbine Inlet Temperature Indicator Range Markings" (Refer to Mod. Bulletin for Data)

Sep 3, 1971
DHC-6 6/185

Power Plant - Engine Intake Deflector System Improvements
Mod. 6/1215
(A/C 1 thru 250)

May 20, 1969
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 7-21-29

Air Conditioning - Pressurization Control - Installation of Redesigned Controller
- Modification 712602
All aircraft

Feb 5, 1993
DHC-6 6/105

Battery Installation - Pressure Venting Elimination
Mod. 6/1080
(A/C 1 thru 105)

Mar 6, 1968
DHC-7 7-30-8

Deicing System - Replacement of Deicing Tubes in Right Hand Wing
- Modification 7/1897 (A/C 1 thru 52)

Sep 4, 1981
DHC-7 7-57-11

Wing Forward Pick-Up Adapter Plates
-  Special Inspection and Rectification
-  Modification 7/2319
(A/C 1 thru 86 less Serial Numbers 78 and 84)
(A/C Serial Numbers 78, 84 and 87 and Sub. will have DH E.O. 72292 or this Modification Incorporated Prior to Delivery)

Dec 17, 1982
DHC-6 6/25

Fuselage Frame for Wing Strut Pickup - Installation of Bush
Mod. 6/1063
(A/C 2 thru 31)

Jun 1, 1967
DHC-7 7-27-68

Flight Controls - Trailing Flap Selector Solenoid Valve Suppression Diode
- Modification 7/2401
(A/C 3 thru 112 with Modification 7/2093)

Jan 18, 1985
DHC-6 6/361

Main Undercarriage Legs - Hydraulic Piping Special Inspection
(A/C 1 thru 530, Except Floatplanes and Excluding A/C 513, 515, 520, 521, 522, 524, 526 and 528)

Aug 19, 1977

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