Commonwealth legislation

AD/B747/130 Amdt 1 - Thrust Reverser Control System Modification

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Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This directive requires installing a solenoid-operated shut-off valve into the thrust-reverser control system on Boeing 747‑100/‑200/‑300 aeroplanes with Pratt & Whitney JT9D engines, and bars fitting replacement engines unless they have the same modification. CASA (through its delegate) issues and enforces the rule; aircraft operators pay for and arrange the modification and must meet the directive’s deadlines to reduce the risk of in‑flight fan-thrust-reverser deployment that could impair controllability.

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Current sections

Direct links to the current provisions in AD/B747/130 Amdt 1 - Thrust Reverser Control System Modification.

AD/B747/130 Amdt 1 - Thrust Reverser Control System Modification

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source

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/B747/130 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.

Boeing 747 Series Aeroplanes

AD/B747/130

Amdt 1

Thrust Reverser Control System Modification 7/2002

Applicability: All Boeing 747-100, -200, and -300 aircraft fitted with Pratt & Whitney JT9D series engines.

Requirement: 1: Incorporate a solenoid-operated shut-off valve into the thrust reverser control system in accordance with Boeing Service Bulletin 747-78-2052, either Rev.3 dated 27 August 1987 or Rev.4 dated 23 March 1989.

2: When engine replacement is required, only engines modified in accordance with Requirement 1 are to be installed on an affected aircraft.

Note: FAA AD 94-10-10 Amdt 39-8917 refers.

Compliance: For Requirement 1: No later than 18 August 1997.

For Requirement 2: After the effective date of this Directive. This Amendment becomes effective on 11 July 2002.

Background: This amendment makes no technical changes to the contents of the Directive.

Therefore, no further action is required for aircraft/engines already in compliance with the original Directive. The Directive was prompted by incidents being reported of in- flight deployment of the engine fan thrust reverser. The actions contained in this Directive are intended to prevent such a deployment, which could result in reduced controllability of the aeroplane.

The original issue of this Airworthiness Directive became effective on 18 August 1994.

Signature of James Coyne, Delegate of the Civil Aviation Safety Authority.

James Coyne

View image in the official sourceDelegate of the Civil Aviation Safety Authority 28 May 2002

The above AD is notified in the Commonwealth of Australia Gazette on 19 June 2002.

Page 1 of 1

Source text

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

1 AD/B747/130 Amdt 1 - Thrust Reverser Control System Modification

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

AIRWORTHINESS DIRECTIVE

For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/B747/130 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.

Boeing 747 Series Aeroplanes

AD/B747/130

Amdt 1

Thrust Reverser Control System Modification 7/2002

Applicability: All Boeing 747-100, -200, and -300 aircraft fitted with Pratt & Whitney JT9D series engines.

2: When engine replacement is required, only engines modified in accordance with Requirement 1 are to be installed on an affected aircraft.

Note: FAA AD 94-10-10 Amdt 39-8917 refers.

Compliance: For Requirement 1: No later than 18 August 1997.

For Requirement 2: After the effective date of this Directive. This Amendment becomes effective on 11 July 2002.

Background: This amendment makes no technical changes to the contents of the Directive.

The original issue of this Airworthiness Directive became effective on 18 August 1994.

James Coyne

Delegate of the Civil Aviation Safety Authority 28 May 2002

The above AD is notified in the Commonwealth of Australia Gazette on 19 June 2002.