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 1 - 20 of 1698

Bulletins RSS

Aircraft S/B No. Title Original Issue Latest Issuesort descending
DHC-7 7-23-6

Cockpit Voice Recorder - To Eliminate Stray Erase Bias, Modify A3 Power Supply Board and Add Reflective Strips (A/C 1 and Sub. as required)

Jun 6, 1980
DHC-7 7-11-11

Air Conditioning - Ground Connection External Label
- Modification 7/1785
- Modification 7/1785 (A/C 1 thru 27) (A/C 1 thru 27)

Oct 3, 1980
DHC-7 7-30-25

Ice and Rain Protection - Snow Separator Actuator - Change of Stroke Limit
- Modification 7/2540
(A/C with ITT Actuator LA11A2113-1 or -2

Jul 31, 1987
DHC-3 V3/0010

Updated DHC-3 Maintenance Program with supplemental inspection tasks for corrosion control and aging aircraft.

 

Mar 19, 2020
DHC-6 6/408

Navigation - Gyroscope Horizons 700 and Variants and 705-7 and Variants
(All A/C equipped as above)

Aug 21, 1981
DHC-7 7-57-31

Wings - Internal Skin Panel Corrosion - Special Inspection
(A/C Serial Number 3 thru 101)

Nov 4, 1987
DHC-6 6/231

Improved Fuel System Filtration
Mod. 6/1229
(A/C 1 thru 290)

Dec 23, 1969
DHC-7 7-34-20

RNAV System - Additional Relay Installation
- Modification 7/2185
(A/C 14, 16, 21, 25, 27, 36, 37, 38, 39, 42, 43, 52, 53, 56, 65, 71, 74, 76, 78 and 80)

Apr 23, 1982
DHC-2 2/07

Engine Compartment Fire Extinguisher - Introduction of Graviner Type 161A

Feb 9, 1971
DHC-7 7-27-85

Flight Controls - Replacement of Flap Overspeed brake
- Modification 7/2600
(A/C 1 and Sub.)

May 10, 1991
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 7-53-23

Fuselage - Additional Drainage Holes in Lower Fuselage
- Modifications 7/2270 and 7/2308
(A/C 1 thru 92 for Modification 7/2270, A/C 1 thru 99 for Modification 7/2308)

Sep 30, 1983
DHC-6 6/151

Sliding Door - Cabin/Cockpit Handle and Latch Retainer
Mod. 6/1132
(A/C 1 thru 135)

Jun 18, 1968
DHC-7 7-32-67

Landing Gear - Installation of Main Wheel Brake Unit `Fluidtronics' Hydraulic Unions
- Modification 7/2354
(A/C 1 thru 112)

Sep 14, 1984
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-6 6/17

Wing Flap Hinge Arm - Fairing Installation Mod. 6/1066
(A/C 1 thru 38)

May 11, 1967
DHC-6 V6/540

Wing - Front Spar Adapter Assembly (P/N C6WM1027-1) - Inspection for Cracks
(All A/C)

Oct 1, 2007
DHC-7 7-23-22

Communications - Flight Crew/Attendant Emergency Call Switch Replacement
- Modification 7/2492 (A/C 3 thru 123)

Oct 17, 1986
DHC-3 3/914

Fire Warning Light Replacement.

DHC-7 7-61-6

Propellers - Removal and Replacement of Propeller Extension Dome Assemblies or Dome Extensions
-  Hamilton Standard Alert S/B A23
(Effectivity - See Hamilton Standard Alert S/B A23)

Mar 13, 1981

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