Airworthiness Directive 2016-05-07
one-timeAirworthiness Directives; Engine Alliance Turbofan Engines
What this AD requires
We are adopting a new airworthiness directive (AD) for certain Engine Alliance (EA) GP7270 turbofan engines. This AD was prompted by reports of the installation of non-conforming honeycomb cartridges in the high-pressure compressor (HPC) adjacent to the HPC rotor stage 2 to 5 spool and stage 7 to 9 spool. This AD requires removal and replacement of the affected HPC rotor stage 2 to 5 and stage 7 to 9 spools and adjacent honeycomb cartridges. We are issuing this AD to prevent failure of the HPC rotor stage 2 to 5 and stage 7 to 9 spools, which could lead to uncontained engine failure and damage to the airplane.
Which aircraft AD 2016-05-07 applies to
Applies to engines with HPC rotor stage 2-5 spool P/N 382-104-807-0 (S/N listed in EA SB EAGP7-72-327 dated July 21, 2015) and/or HPC rotor stage 7-9 spool P/N 2031M90G04, 2031M90G05, or 2031M90G07 (S/N listed in EA SB EAGP7-72-328 dated July 21, 2015) installed.
Whether AD 2016-05-07 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.