Commonwealth legislation

AD/JT9D/13 Amdt 3 - Low Pressure Turbine Anti-Rotation Pins

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Commonwealth

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legislative instrument

Plain English Summary

3/10 complexity

This airworthiness directive requires operators of specified Pratt & Whitney JT9D engines that have not incorporated Service Bulletin 5292 to inspect low‑pressure turbine vane anti‑rotation pins per PWA SB 5735 (or a Secretary‑agreed method) and replace those pins per PWA SB 5292 Rev.4. Replacement must occur at the next removal of the low pressure turbine shaft or by 31 December 1989. Operators bear the inspection and replacement costs; the Secretary may approve alternate compliance methods. (Applicability; Requirement; Compliance.)

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Current sections

Direct links to the current provisions in AD/JT9D/13 Amdt 3 - Low Pressure Turbine Anti-Rotation Pins.

AD/JT9D/13 Amdt 3 - Low Pressure Turbine Anti-Rotation Pins

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Pratt and Whitney Turbine Engines - JT9D Series

AD/JT9D/13

Amdt 3

Low Pressure Turbine Anti-Rotation Pins 5/88

Applicability: JT9D-3A,-7,-7H,-7AH,-7A,-7A(SP),-7F,-7J,-20 engines not fully incorporating PWA SB 5292.

Requirement: 1. Inspect pre-SB 5292, low pressure turbine vane anti-rotation pins in accordance with the requirements of PWA SB 5735, or as agreed by the Secretary.

Replace pre-SB 5292, low pressure turbine vane anti-rotation pins in accordance with the requirements of PWA SB 5292 Rev. 4.

Compliance: 1. In accordance with the Requirement document or as agreed by the Secretary.

At the next removal of the low pressure turbine shaft from the low pressure turbine case and vane assembly but not later than 31 December 1989.

Background: This Directive has been amended to include in the applicable engine models, all JT9D models listed in PWA SB 5292 and 5735. The amendment includes the JT9D-3A model previously removed from the Australian Register.

Source text

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

1 AD/JT9D/13 Amdt 3 - Low Pressure Turbine Anti-Rotation Pins