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Thu, Jun 15, 2017

AD: Pratt & Whitney Turbofan Engines

AD NUMBER: 2017-11-06

PRODUCT: All Pratt & Whitney (PW) PW2037, PW2037D, PW2037M, PW2040, PW2040D, PW2043, PW2143, PW2643, and F117-PW-100 turbofan engines.

ACTION: Final Rule

SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2014-05-32 for the engines listed above.

AD 2014-05-32 required one-time eddy current inspection (ECI) of affected engines with certain diffuser and high-pressure turbine (HPT) cases installed.

AD 2014-05- 32 also required a fluorescent-penetrant inspection (FPI) of the diffuser case rear flange and the HPT case front flange. This AD requires additional repetitive, on-wing ECI inspections.

This AD was prompted by the manufacturer determining through analysis that the inspections required by AD 2014-05-32 are not adequate to maintain safety for certain diffuser cases.

The FAA is issuing this AD to correct the unsafe condition on these products.

DATES: This AD is effective July 18, 2017.

FMI: AD

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