Superseded by FAA AD 2019-21-11

Published: Sep 26, 2019
Effective: Sep 26, 2019
Deadline: Sep 26, 2019

AI-generated summary of the official EASA document. Verify against the PDF before acting.

What to do

Operators of affected Pratt & Whitney PW1500G and PW1900G engines must perform initial borescope inspections within 50 flight cycles from the directive's effective date and continue with repetitive inspections as specified. If inspections reveal damage, the low-pressure compressor must be replaced promptly. Comments on the directive are accepted until November 12, 2019.

Summary

FAA Airworthiness Directive 2019-19-11 is a final rule addressing certain Pratt & Whitney PW1500G and PW1900G model turbofan engines. It mandates initial and repetitive inspections of the low-pressure compressor inlet guide vane and rotor 1, with potential replacement of the low-pressure compressor based on inspection results. This directive aims to prevent failures that have caused recent in-flight shutdowns.

What changed

This new airworthiness directive introduces mandatory borescope inspections of the low-pressure compressor inlet guide vane and rotor 1 for specified Pratt & Whitney turbofan engines. It requires replacement of the low-pressure compressor if inspection findings indicate damage. The directive applies to engines with less than 300 flight cycles since new and includes repetitive inspection intervals.

Why it matters

This directive is critical for aviation professionals because failures of the low-pressure compressor rotor can lead to uncontained engine failures, in-flight shutdowns, and potential damage to the aircraft. Operators and maintenance teams must comply to ensure continued airworthiness and flight safety. Early detection through inspections helps prevent costly repairs and enhances operational reliability.

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