Airworthiness Directives; Honeywell International Inc. ATF3-6 and ATF3-6A Series Turbofan Engines
airworthiness · Rule · Final rule. · Published 2008-03-18 · Effective 2008-04-22 · 73 FR 14377
Document
Document number
E8-5274
Federal Register citation
73 FR 14377
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Honeywell International Inc. ATF3-6 and ATF3-6A Series Turbofan
Publication date
2008-03-18
Effective date
2008-04-22
FAA docket
Docket No. FAA-2007-29092
Abstract
The FAA is adopting a new airworthiness directive (AD) for Honeywell International Inc. ATF3-6 and ATF3-6A series turbofan engines equipped with a certain part number (P/N) low pressure compressor (LPC) aft shaft. This AD requires removing from service those LPC aft shafts and installing a serviceable LPC aft shaft. This AD results from reports of eight LPC aft shafts found cracked during fluorescent penetrant inspection (FPI). We are issuing this AD to prevent uncoupling and overspeed of the low pressure turbine, which could result in uncontained engine failure and damage to the airplane.