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 1684

Bulletins RSS

Aircraftsort ascending S/B No. Title Original Issue Latest Issue
DHC-7 7-23-17

Communications - Introduction of Diode to Flight Attendant's Panel Electrical Circuit
- Modification 7/2208 (A/C 1 thru 92)

Feb 25, 1983
DHC-7 7-32-6

Main Landing Gear - Orifice Support Tube Rework
- Modification 7/1561
(A/C 1 thru 7, 9 and 10)

Mar 16, 1979 Apr 30, 1979 'A'
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-7 7-11-22

Pilots Instrument Lights - Additional Identification Label for Circuit breakers
- Modification 7/2138
(A/C 3 thru 112)

Jun 18, 1982 Mar 22, 1985 'A'
DHC-7 7-28-14

Fuel System - Alternative Refuel/Defuel Valve
- Modification 7/1739
(A/C 1 thru 65)

Sep 23, 1983
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-7 7-27-26

Wing Flight Spoilers - Rigging Check and Special Inspection of Spoiler Inboard
Attachment Bellcrank Spigot Fitting for Cracking
- Modifications 7/1928 and 7/1952
(A/C 3 thru 36)

Oct 10, 1980 Jan 28, 1983 'B'
DHC-7 7-39-6

Instruments - Engine Turbine Temperature and Propeller Tachometer Clamp Replacement
- Modification 7/1998
(A/C 3 thru 72)

Mar 5, 1982
DHC-7 7-25-19

Furnishings - Toilet Compartment -  Addition of Access Panel
-  Modification 7/1694 (A/C 1 thru 16) (17 thru 35 under de Havilland E.O. 74459)

Mar 27, 1981
DHC-7 A7-32-102

Landing Gear - Brakes and Nose Doors
-  Special Inspection of Shuttle Valves and Replacement of Filter Fittings
All Models Serial Numbers 003 thru 113 with Brake Shuttle Valves
Serial Numbers 2162A thru 2244A installed

Oct 22, 1997 Nov 26, 1997 'A'
DHC-7 7-24-8

Electrical System - External Power Connector and Limiter - Introduction of Copper Bus Bars
- Modification 7/1472 (A/C 1 thru 12)

Jun 22, 1979
DHC-7 7-32-22

Main Landing Gear - Lower Drag Strut
-  Menasco S/B 32-19
(A/C 1 thru 22 if Drag Strut not Stamped SB 32-19 as shown in Menasco S/B 32-19)
-  Special Inspection for Clearance

Apr 11, 1980
DHC-7 7-71-5

Forward Engine Firewall Rework -  To Accommodate Pratt and Whitney Synchrophaser Trimmer Head Housing -  Modification 7/1760
(A/C 1 thru 25)

Nov 28, 1980
DHC-7 7-71-6

Power Plant - To Reroute Engine Accessories Seal Drains
- Modification 7/135
(A/C 3 thru 12)

Aug 14, 1981 Nov 20, 1981 'A'
DHC-7 7-21-4

Air Conditioning - Foot Warmer - To Improve Heat Supply to Flight Crew
- Modification 711528
(A/C 1 thru 12)

Jul 6, 1979
DHC-7 7-29-3

Hydraulic Pump Drive Shaft - Special Inspection
(A/C 1 thru 6 and 9)

Mar 16, 1979
DHC-7 7-55-3

Horizontal Stabilizer End Ribs - To Change Material of Lightening Hole Cover
- Modification 7/1481
(A/C 3 thru 7 and 9)

Feb 9, 1979 Dec 12, 1980 'B'
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-7 NOTE:

Operators should be aware that Incorporation of this Modification Retrofit Kit 7MK1327 -003 also Necessitates the Installation of Modification 7/1704 - Baggage Door Stay Replacement - S/B 7-52-14

DHC-7 7-25-36

Furnishings - Emergency Locator Transmitter - Provision of Dual Frequencies
- Modification 7/1875
(A/C 1 thru 27 with Emergency Locator Transmitter)

Jan 15, 1982

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