airworthiness · Rule · Final rule. · Published 2016-03-15 · Effective 2016-04-19 · 81 FR 13714
Document
Document number
2016-05702
Federal Register citation
81 FR 13714
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Engine Alliance Turbofan
Publication date
2016-03-15
Effective date
2016-04-19
FAA docket
Docket No. FAA-2015-3713
Abstract
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.