Commonwealth legislation

AD/DHC-8/49 - Inspection of Wiring Harness

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This airworthiness directive requires operators of specified de Havilland DHC‑8 Series 100/200/300 aircraft (serial numbers 003–433 except 031, 408 and 413) to install de Havilland Modification 8/2624 in accordance with Service Bulletin 8‑24‑50. The modification provides inspection, repair of chafed wiring behind the lavatory and a cut‑away of the lavatory forward panel to reduce the risk of overheating and smoke. Operators must comply by 9 July 1998 (directive effective 9 October 1997) and therefore bear the cost and scheduling burden of the work.

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AD/DHC-8/49 - Inspection of Wiring Harness

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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

AD/DHC-8/49 Inspection of Wiring Harness 11/97

Applicability: de Havilland Inc. DHC-8 aircraft, series 100, 200 and 300, serial numbers 003 to 433

inclusive except 031, 408 and 413.

Requirement: Install deHavilland Modification 8/2624, Special Inspection For Chafing Of Cable Harness Behind Lavatory And Cut Away Of Lavatory Forward Panel, in accordance with deHavilland Service Bulletin 8-24-50 dated 25 April 1997.

Note: Transport Canada AD CF-97-14 refers.

Compliance: Unless previously accomplished by 9 July 1998.

This airworthiness directive becomes effective on 9 October 1997.

Background: Some operators have reported chafing of electrical wiring at the forward, top, outboard edge of the lavatory side wall resulting in severe local overheat and smoke in the cockpit and cabin. The deHavilland modification 8/2624 provides the means for assessing the condition of the affected wires, repair any damage and reduce the risk of future damage to the wiring harness in the area behind the lavatory and cut away of the lavatory forward panel.

Source text

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

1 AD/DHC-8/49 - Inspection of Wiring Harness