Commonwealth legislation

AD/DHC-8/54 Amdt 2 - Fuselage Cable Trough

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This Airworthiness Directive requires operators of Bombardier DHC‑8 aeroplanes (models 102,103,106,201,202,301,311,314,315; serials 3–540, excluding 462) to inspect wiring in the underfloor cable trough and install Bombardier Modification 8/2705 per the listed service bulletins. The measure responds to a reported in‑flight engine shutdown caused by wire chafing on rivet edges. Compliance is at the next ‘C’ check but no later than 36 months after 18 June 1998.

JSON API

Deep dive

Want the full deep dive?

Zoe can write the in-depth analysis on top of the summary above: how it works, who it affects and what each part actually does.

Current sections

Direct links to the current provisions in AD/DHC-8/54 Amdt 2 - Fuselage Cable Trough.

AD/DHC-8/54 Amdt 2 - Fuselage Cable Trough

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source
View image in the official source
Bombardier (Boeing Canada/De Havilland) DHC-8 Series Aeroplanes

AIRWORTHINESS DIRECTIVE

View image in the official source

View image in the official source
For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/DHC-8/54 Amdt 1 and issues the following AD under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

AD/DHC-8/54

Amdt 2

Fuselage Cable Trough 10/2000

Applicability: DHC-8 aeroplanes Models 102, 103, 106, 201, 202, 301, 311, 314 and 315 with serial

numbers 3 through 540 inclusive, excluding serial number 462.

Requirement: Inspect the wiring in the underfloor cable trough and incorporate Bombardier Modification 8/2705 in accordance with the following Bombardier Inc de Havilland Dash 8 Service Bulletins:

Model	Service Bulletin	Date of Issue
102, 103, 106, 201 and 202	8-53-66and8-53-80	27 March 1998 and22 December 1999
301, 311, 314 and 315	8-53-66	27 March 1998

Note: Transport Canada AD CF-98-08 R2 refers.

Compliance: The compliance remains unchanged as ‘At the next ‘C’ check, but no later than 36 months after 18 June 1998 (the effective date of the original issue of this Directive)’.

This Amendment becomes effective on 5 October 2000.

Background: A DHC-8 aeroplane experienced an uncommanded engine shut-down in flight due to a short circuit between adjacent wires located in the left underfloor cable trough. The short circuit resulted in a 28 volt signal being applied to the fuel shut-off valve. An investigation revealed that the short circuit was caused by chafing of wires on sharp edges on the cherrymax rivets in the cable trough.

This Directive requires inspection of the wiring in the underfloor cable trough together with the installation of new cable tie-mounts in the cable trough and sealing rivets to prevent chafing of wires.

Amendment 1 increased the serial number range of the affected aeroplanes.

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

This amendment addresses the omission of a section of the underfloor cable trough in the instructions for inspecting the wires and for incorporating Modification 8/2705 in model 102, 103, 106, 201 and 202 aeroplanes.

View image in the official source
The original issue of this Airworthiness Directive became effective on 18 June 1998. Amendment 1 of this Airworthiness Directive became effective on 3 December 1998.

Eugene Paul Holzapfel

Delegate of the Civil Aviation Safety Authority 25 August 2000

View image in the official source

The above AD is notified in the Commonwealth of Australia Gazette on 6 September 2000.

Source text

Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.

1 AD/DHC-8/54 Amdt 2 - Fuselage Cable Trough

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

Bombardier (Boeing Canada/De Havilland) DHC-8 Series Aeroplanes

AIRWORTHINESS DIRECTIVE

For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/DHC-8/54 Amdt 1 and issues the following AD under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

AD/DHC-8/54

Amdt 2

Fuselage Cable Trough 10/2000

Applicability: DHC-8 aeroplanes Models 102, 103, 106, 201, 202, 301, 311, 314 and 315 with serial

numbers 3 through 540 inclusive, excluding serial number 462.

Requirement: Inspect the wiring in the underfloor cable trough and incorporate Bombardier Modification 8/2705 in accordance with the following Bombardier Inc de Havilland Dash 8 Service Bulletins:

Model	Service Bulletin	Date of Issue
102, 103, 106, 201 and 202	8-53-66and8-53-80	27 March 1998 and22 December 1999
301, 311, 314 and 315	8-53-66	27 March 1998

Note: Transport Canada AD CF-98-08 R2 refers.

Compliance: The compliance remains unchanged as ‘At the next ‘C’ check, but no later than 36 months after 18 June 1998 (the effective date of the original issue of this Directive)’.

This Amendment becomes effective on 5 October 2000.