Commonwealth legislation

AD/B747/230 Amdt 1 - Thrust Reverser Checks

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

5/10 complexity

This amendment requires operators of Boeing 747 series aeroplanes to perform and repeat operational checks of the thrust reverser system after maintenance and at regular intervals, to repair any discrepancies before further flight, and allows certain production-installed locking systems to be a terminating action for inspections under AD/B747/277. It points operators to FAA AD 2000-02-22 procedures and sets specific flight-hour and time-in-service compliance deadlines (see Compliance).

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Current sections

Direct links to the current provisions in AD/B747/230 Amdt 1 - Thrust Reverser Checks.

Boeing 747 Series Aeroplanes

AD/B747/230 Amdt 1 (continued)

4. If Requirement 3 operational check cannot successfully be carried out in accordance with the procedures in Appendix 1 of FAA AD 2000-02-22, or if any discrepancy is detected during any operational check, repair in accordance with procedures specified in approved maintenance data.

5. Repeat Requirement 3 operational checks if any discrepancies have been corrected under Requirement 4 during compliance with Requirement 3 or 6.

6. Repeat and successfully accomplish operational checks required by Requirement 3.

Terminating Action

Accomplishment of Requirement 1 and 2, or installation of an additional locking system during production in accordance with production equivalent PRR 81000- 39, is terminating action for the inspections and tests required by Requirement 3 of AD/B747/277.

Note: FAA AD 2000-02-22 Amendment 39-11540 refers.

Compliance: For Requirement 1: Within 36 months time in service from 13 July 2000 (the effective date of original issue of this Directive).

For Requirement 2: Prior to or concurrent with Requirement 1 compliance.

For Requirement 3: Within 3,000 flight hours after accomplishment of Requirement 1 or within 1,000 flight hours from 13 July 2000 (the effective date of original issue of this Directive), whichever occurred later.

For Requirement 4: Prior to further flight. For Requirement 5: Prior to further flight.

For Requirement 6: At intervals not exceeding 3,000 flight hours time in service. This Amendment becomes effective on 5 September 2002.

Source text

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

Boeing 747 Series Aeroplanes Boeing 747 Series Aeroplanes

Boeing 747 Series Aeroplanes

AD/B747/230 Amdt 1 (continued)

4. If Requirement 3 operational check cannot successfully be carried out in accordance with the procedures in Appendix 1 of FAA AD 2000-02-22, or if any discrepancy is detected during any operational check, repair in accordance with procedures specified in approved maintenance data.

5. Repeat Requirement 3 operational checks if any discrepancies have been corrected under Requirement 4 during compliance with Requirement 3 or 6.

6. Repeat and successfully accomplish operational checks required by Requirement 3.

Terminating Action Terminating Action

Terminating Action

Note: FAA AD 2000-02-22 Amendment 39-11540 refers.

Compliance: For Requirement 1: Within 36 months time in service from 13 July 2000 (the effective date of original issue of this Directive).

For Requirement 2: Prior to or concurrent with Requirement 1 compliance.

For Requirement 4: Prior to further flight. For Requirement 5: Prior to further flight.

For Requirement 6: At intervals not exceeding 3,000 flight hours time in service. This Amendment becomes effective on 5 September 2002.

Boeing 747 Series Aeroplanes Boeing 747 Series Aeroplanes

Boeing 747 Series Aeroplanes

AD/B747/230 Amdt 1 (continued)

Background: This amendment introduces a requirement to repeat operational checks after maintenance, and terminating action for part of AD/B747/277. This Directive was issued after a safety review revealed that in- flight deployment of a thrust reverser could result in significant reduction of aircraft controllability. Therefore this Directive includes actions to ensure the integrity of the fail safe features of the thrust reverser system is maintained by preventing failure modes which could result in inadvertent deployment of a thrust reverser during flight. This amendment does not add aircraft or require more work on aircraft modified in accordance with the original issue of the service bulletin.