Summary
The FAA is adopting a new airworthiness directive (AD) for certain General Electric Company (GE) GEnx-1B64/P2, -1B67/P2, -1B70/P2, -1B70C/P2, -1B70/75/P2, -1B74/75/P2, -1B76/P2, -1B76A/P2, and GEnx- 2B67/P model turbofan engines. This AD was prompted by the detection of melt-related freckles in the billet, which may reduce the life limits of certain high-pressure turbine (HPT) rotor stage 2 disks and a certain stages 6-10 compressor rotor spool. This AD requires the removal of certain HPT rotor stage 2 disk and the removal of a certain stages 6-10 compressor rotor spool before reaching their new life limits. The FAA is issuing this AD to address the unsafe condition on these products.
Directive Details
AD Number
FAA-2020-0555
Document Number
2020-21450
Type
Rule
Publication Date
September 29, 2020
Effective Date
November 3, 2020
Affected Manufacturer
General Electric Company Turbofan
Criticality
routine
Emergency
No
Docket ID
Docket No. FAA-2020-0555
Topics
Official Documents
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