Airworthiness Directive 2023-17-08
one-timeAirworthiness Directives; General Electric Company Engines
What this AD requires
The FAA is adopting a new airworthiness directive (AD) for certain General Electric Company (GE) Model GEnx-1B and GEnx-2B engines. This AD was prompted by a manufacturer investigation that revealed that certain stages 6-10 compressor rotor spools and forward seals were manufactured from powder metal material suspected to contain iron inclusion. This AD requires the replacement of the affected stages 6-10 compressor rotor spools and forward seals. The FAA is issuing this AD to address the unsafe condition on these products.
Which aircraft AD 2023-17-08 applies to
Applies only to engines with an installed Stages 6-10 compressor rotor spool or forward seal having a part number and serial number listed in GE GEnx-1B Service Bulletin 72-0515 R00 (dated January 31, 2023) or GE GEnx-2B Service Bulletin 72-0452 R00 (dated January 31, 2023).
Whether AD 2023-17-08 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.
How AD compliance is recorded
A valid compliance record (14 CFR 43.9) states:
Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.
Look up a tail number →Read the full directive (Federal Register)Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.