Airworthiness Directives; Honeywell International Inc. Turbofan Engines
airworthiness · Rule · Final rule. · Published 2012-08-28 · Effective 2012-10-02 · 77 FR 51892
Document
Document number
2012-21010
Federal Register citation
77 FR 51892
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Honeywell International Inc. Turbofan
Publication date
2012-08-28
Effective date
2012-10-02
FAA docket
Docket No. FAA-2011-1045
Abstract
We are adopting a new airworthiness directive (AD) for certain Honeywell International Inc. models TFE731-4, -4R, -5, -5R, -5AR, and - 5BR series turbofan engines. This AD was prompted by a report of a rim/ web separation of a first stage low-pressure turbine (LPT1) rotor assembly. This AD requires replacing affected LPT1 rotor assemblies with assemblies eligible for installation. We are issuing this AD to prevent uncontained disk separation, engine failure, and damage to the airplane.