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 1683

Bulletins RSS

Aircraft S/B No. Title Original Issue Latest Issuesort ascending
DHC-6 6/478

Engine Controls - Beta Backup Switch Installation
Mod. 6/1831
(All A/C)
(A/C 6 and Sub. Notice of Status Change 07 Dec 90)

Jan 24, 1986 Jul 7, 1989 'C'
DHC-7 7-25-59

Equipment/Furnishings - Protective breathing Equipment (PBE) - Addition of Mounting Provisions
- Modification 7/2584 (A/C 1 and Sub.)

May 26, 1989 Jun 23, 1989 'A'
DHC-7 7-24-66

Electrical Power - Special Inspection of Main Landing Gear Frame Bolts and Relocation of
External Power Ground Studs
- Modification 7/2577
(All A/C)

Oct 28, 1988 Jun 23, 1989 'B'
DHC-7 7-53-33

Fuselage - Special Inspection for Disbonding of Unriveted Stringers on Fuselage Skin
(All A/C)

May 31, 1989 Jun 9, 1989 'A'
DHC-6 6/476

Wing Front Attachment Adapters - Special Inspection
(All A/C)

Aug 16, 1985 Feb 3, 1989 'C'
DHC-7 7-25-56

Equipment/Furnishings - Fireblocking Requirements for Aircraft Seat Cushions (A/C 1 thru 108)

Sep 11, 1987 Jan 20, 1989 'A'
DHC-7 7-30-12

Snow Separator Actuator - Interchangeable Replacements
- Modifications 7/1782, 7/2020 and 7/2228 (A/C 1 and Sub.)

Aug 20, 1982 Oct 28, 1988 'E'
DHC-7 7-32-90

Landing Gear - Main Gear Lock Strut - Special Inspection of Upper Lock Strut Sub-Assembly
(A/C with Lock Strut Assembly Part Number 15720)

Jul 8, 1988 Oct 28, 1988 'A'
DHC-7 7-30-23

Ice and Rain Protection - Snow Separator Actuator - Introduction of Improved Actuator
- Modification 7/2422
(A/C 3 thru 112)

Aug 1, 1986 Sep 2, 1988 'A'
DHC-7 7-33-14

Lights - Passenger Cabin Installation of Floor Proximity Emergency Escape Lighting
- Modification 7/2505
(A/C 1 and Sub.)

Sep 19, 1986 Apr 29, 1988 'C'
DHC-7 7-33-17

Lights - Passenger Cabin Floor Proximity Emergency Escape Lighting - Replacement of Forward Power Supply Mounting Structure
- Modification 7/2541
(A/C with Modification 7/2505)

Jul 31, 1987 Apr 29, 1988 'A'
DHC-7 7-33-20

Lights - Floor Proximity Emergency Escape Lighting - Installation of Electrical Jumpers
- Modification 7/2549
(A/C without Modification 7/1697 and with Modification 7/2505)

Oct 2, 1987 Apr 29, 1988 'B'
DHC-7 7-57-29

Wings - Installation of Stainless Steel Washers on Heat Shields
- Modification 7/2507
(A/C with Modification 7/2414)

Aug 1, 1986 Apr 15, 1988 'B'
DHC-7 7-54-13

Inboard Nacelles - Front Spar Frame Replacement
(A/C 3 thru 27)

Aug 12, 1983 Apr 15, 1988 'B'
DHC-7 7-30-18

Ice and Rain Protection - Centre Fuselage Ice Guard Installation - S.O.O. 7161
(A/C 1 and Sub)

Dec 21, 1984 Dec 11, 1987 'C'
DHC-7 7-34-34

Navigation - Ground Proximity Warning Computer (G.P.W.C.) - Reconfiguration of Altitude Rate Circuitry
(A/C with GPWC Part Number 965-0476-088, Prior to Serial Number 5568)

Sep 19, 1986 Nov 20, 1987 'B'
DHC-7 7-34-35

Navigation - Ground Proximity Warning System - Installation of Steep Approach Adapter
- S.O.O. No. 7181
(A/C 1 and Sub.)

Mar 6, 1987 Oct 30, 1987 'B'
DHC-6 6/489

Wings - Introduction of Flap Hinge Arm Inspection Panels at Wing Station 310.00
Mod. 6/1871
(All A/C)

Oct 17, 1986 Oct 23, 1987 'A'
DHC-6 6/493

Electrical Power - Special Inspection and Rectification of Circuit Breakers
(A/C 831; all other A/C may have Suspect Circuit Breakers Installed During In-Service Maintenance or Modification)

Jan 16, 1987 Oct 23, 1987 'C'
DHC-7 7-27-64

Flight Controls - Rudder Restrictor Sprocket Mechanism Replacement
- Modification 7/2387
(A/C 1 thru 112)

Sep 14, 1984 Oct 2, 1987 'B'

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