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 1501 - 1520 of 1684

Bulletins RSS

Aircraft S/B No. Title Original Issue Latest Issue
DHC-7 7-24-52

Electrical System - Wing Root Terminal Block Relocation
- Modification 7/2317 (A/C 3 thru 112)

Apr 6, 1984
DHC-7 7-24-51

Electrical Power - Aircraft Main Batteries Replacement
- Modification 7/2171
(A/C 3 thru 112 with Modification 7/1263 Electrical System - Installation of Batteries in Forward Avionics Bay)

Aug 19, 1983 Mar 22, 1985
DHC-7 7-24-50

Electrical Power - DC External/Internal Power Transfer - Introduction of Time Delay Relays
- Modification 7/2184
(A/C 3 thru 90 and 94)

DHC-7 7-24-5

400 Hz Inverters - To Add Power Factor Correction Capacitors
- Modification 7/1286 (A/C 3, 4, and 7)

Sep 25, 1978
DHC-7 7-24-49

AC Electrical System - Voltage Suppressors and Relays Replacement
- Modification 7/2092 (A/C 1 thru 112)

Feb 25, 1983 Mar 22, 1985 'A'
DHC-7 7-24-48

Electrical - Master Caution Control Circuit breaker Relocation - Modification 7/2200 and Stall Warning Dual Power Source Diode Installation - Modification 7/2206
(A/C 1 thru 81 - Modification 7/2200) (A/C 1 thru 95 - Modification 7/2206)

Aug 20, 1982 Oct 15, 1982 'A'
DHC-7 7-24-47

Electrical - Relocation of Resistor 3120-R2 on Relay Panel No. 4 - Modification 7/2016 (A/C 28 thru 41 - Modification 7/1452 (Digital Elapsed Time Clock)
(A/C 42 thru 92 - Modification 7/2016 by E.O. 74908 Prior to Delivery)

Aug 20, 1982
DHC-7 7-24-46

Electrical - Flight Compartment Overhead Circuit breaker Panel Illumination -  Interchange of Control
-  Modification 7/1940 (A/C 3 thru 72)

Aug 13, 1982
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 7-24-44

Electrical Power - Generator Control Units U13866, U13866/1, U13866/2, U13866/3 - Lucas Aerospace Modification 5063CG (A/C 1 and Sub.)

Jun 25, 1982
DHC-7 7-24-43

Electrical System - Crash Fire Precautions -  Power Supply Change
-  Modification 7/2015 (A/C 3 thru 92)

Jan 14, 1983
DHC-7 7-24-42

Electrical System - Relocation of Inverter Fail Circuit breaker - Modification 7/2199 and Retermination of Inverter Warning Control Circuit Power Supply - Modification 7/2261
(A/C 1 thru 72 - Modification 7/2199)
(A/C 1 thru 87 - Modification 7/2261)

Jun 25, 1982 Oct 15, 1982 'A'
DHC-7 7-24-41

Electrical System - Fuel Tank Transmitter Cable - Receptacle Replacement
- Modification 7/1999 (A/C 1 thru 92)

Mar 12, 1982
DHC-7 7-24-40

Electrical Power - Lucas A.E. 2132 MK4 A.C. Generator - Introduction of New Rotor and Fan Assembly
(All DHC-7 A/C with Lucas A/C Generator A.E. 2132 MK4 Installed)

Feb 19, 1982
DHC-7 7-24-4

Powered Flight Control Shut-off Switches Replacement
- Modification 7/1301 (A/C 1, 2 and 4)

Jun 23, 1978
DHC-7 7-24-39

Electrical Power - D.C. Busbar Protection Unit ZA29702 - Lucas Aerospace Modification 5064CG (A/C 1 and Sub.)

Nov 13, 1981
DHC-7 7-24-38

Electrical Power - Generator Control Units U13866, U13866/1, U13866/2 and U13866/3 - Lucas Aerospace Modification 5474U (A/C 1 and Sub.)

Nov 13, 1981
DHC-7 7-24-37

Electrical System - Rework of Electrical Connectors 2824 P11 and P12 for Number One and Two Fuel Tank Dump Valve Air Solenoid Valves
- D.H. E.O. 77007
(A/C 54)

Nov 13, 1981
DHC-7 7-24-36

Bleed Air Caution Light - To Overcome Spurious Illumination
- Modification 7/1842 (A/C 1 thru 52)

Nov 6, 1981 Apr 22, 1983 'B'
DHC-7 7-24-35

Electrical System - Variable Frequency A.C. Power - Special Inspection of Cable Assembly (A/C 1 thru 68)

Oct 2, 1981

Pages