Commonwealth legislation

AD/B747/277 Amdt 2 - Thrust Reverser Inspections and Tests

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

7/10 complexity

This directive requires operators of certain Boeing 747 aeroplanes to carry out periodic inspections and functional tests of thrust reverser control and indication systems and to fix any discrepancies using specified Boeing service bulletins. An FAA Alternative Means of Compliance (AMOC) is allowed for aeroplanes with Boeing SB 747-78-2151 Rev 2 implemented in production or retrofit. The rule sets different documentary instructions by engine type (Rolls‑Royce RB211‑524G/H and Pratt & Whitney PW4000) and identifies a terminating action for Requirement 3 (AD/B747/230 Amdt 1).

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Current sections

Direct links to the current provisions in AD/B747/277 Amdt 2 - Thrust Reverser Inspections and Tests.

Alternative Means of Compliance (AMOC):

For aeroplanes on which the intent of Boeing SB 747-78- 2151 Revision 2, dated 13 January 2000, was accomplished during production, or retrofitted subsequently, and implementing the periodic checks of both the electro- mechanical brake/lock and Centre Drive Unit (CDU) cone brake as detailed in FAA Alternative Means of Compliance (AMOC) document, reference 99-140S- 295, dated 13 August 1999, is an alternative means of compliance to Requirement 2 of this Directive.

3. Rolls-Royce RB211-524G/H series engines:

Carry out inspections and functional tests of the thrust reverser control and indication systems in accordance with paragraphs III.D. to III.K. of the Accomplishment Instructions of Boeing Service Bulletin 747-78-2115, dated 28 October 1993; or paragraphs III.D. to III.L. of the Accomplishment Instructions of Boeing Alert Service Bulletin 747-78A2115 Revision 1, dated 4 March 1994.

b. Repeat the inspections and functional tests of Requirement 3(a).

Compliance with AD/B747/230 Amdt 1 is terminating action for all of Requirement 3.

4. If any of the inspections and/or functional tests required by this Airworthiness Directive cannot be successfully carried out, or if any discrepancy is found during those inspections and/or functional tests, correct the discrepancy found in accordance with:

For Pratt & Whitney PW4000 series engines: Boeing Service Bulletin (SB) 747-78-2112, dated 11 November 1993, or Boeing Alert SB 747-78A2112 Revision 1, dated 7 March 1994.

Source text

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

Alternative Means of Compliance (AMOC): Alternative Means of Compliance (AMOC):

Alternative Means of Compliance (AMOC):

3. Rolls-Royce RB211-524G/H series engines:

Carry out inspections and functional tests of the thrust reverser control and indication systems in accordance with paragraphs III.D. to III.K. of the Accomplishment Instructions of Boeing Service Bulletin 747-78-2115, dated 28 October 1993; or paragraphs III.D. to III.L. of the Accomplishment Instructions of Boeing Alert Service Bulletin 747-78A2115 Revision 1, dated 4 March 1994.

b. Repeat the inspections and functional tests of Requirement 3(a).

Compliance with AD/B747/230 Amdt 1 is terminating action for all of Requirement 3.

4. If any of the inspections and/or functional tests required by this Airworthiness Directive cannot be successfully carried out, or if any discrepancy is found during those inspections and/or functional tests, correct the discrepancy found in accordance with:

For Pratt & Whitney PW4000 series engines: Boeing Service Bulletin (SB) 747-78-2112, dated 11 November 1993, or Boeing Alert SB 747-78A2112 Revision 1, dated 7 March 1994.