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AD 75-13-04

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Airworthiness directive · Compressor Disks · Pratt & Whitney Division TF33-P-7 and TF33-P-7A

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AboutSource files 1
Effective
July 3, 1975
Models
TF33-P-7, TF33-P-7A
Data sheet
TCDSE3EA
Product
Engine
Amendment
39-2244

Unofficial copy of the text in the FAA’s Dynamic Regulatory System. The FAA’s own copy is the authoritative one. DRS record last changed May 30, 2024.

On this page

The airworthiness directive

75-13-04 PRATT & WHITNEY AIRCRAFT: Amendment 39-2244. Applies to all Pratt & Whitney Aircraft TF33-P-7 and TF33-P-7A turbofan engines containing thirteenth stage compressor disk, P/N 657913, fourteenth stage compressor disk, P/N 657914, fifteenth stage compressor disk, P/N 657915, and sixteenth stage compressor disk, P/N 657916.

To ensure adequate life limit margin, remove from service thirteenth, fourteenth, fifteenth, and sixteenth stage compressor disks prior to exceeding the revised life limit listed below.

Disk Part Number Previous Life Limit (Cycles) Revised Life Limit (Cycles) 657913 15,000 8,500 657914 15,000 8,500 657915 15,000 8,500 657916 15,000 8,500

This amendment becomes effective July 3, 1975.

Affected TCDS · 1

The type certificate data sheets for the models this AD names, matched by model and maker.

TCDS E3EAPratt & Whitney DivisionNames 2 of 3 models: TF33-P-7 and TF33-P-7A

Registered aircraft

No registered aircraft matched this AD’s modelsForeign aircraft aren’t included, and ADs on propellers and appliances aren’t matched by model.