Superseded. This AD was superseded by AD 2019-05-07. Verify which one applies to your serial and effectivity before any maintenance action.
AD 2017-20-01
Effective 11/02/2017 · Published 09/28/2017
Airworthiness Directives; Honeywell International Inc. Turbofan Engines
Summary
We are adopting a new airworthiness directive (AD) for all Honeywell International Inc. (Honeywell) TFE731-20 and TFE731-40 turbofan engines. This AD was prompted by two fan disks found with a manufacturing-caused flaw. This AD requires removing affected fan disks and replacing fan disks with a part eligible for installation. We are issuing this AD to address the unsafe condition on these products.