airworthiness · Rule · Final rule. · Published 2012-09-18 · Effective 2012-10-23 · 77 FR 57484
Document
Document number
2012-22954
Federal Register citation
77 FR 57484
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Airbus
Publication date
2012-09-18
Effective date
2012-10-23
FAA docket
Docket No. FAA-2012-0671
Abstract
We are superseding an existing airworthiness directive (AD) for all Airbus Model A330-243, -341, -342 and -343 airplanes. That AD currently requires modifying certain cowl assemblies of the left- and right-hand thrust reversers. This new AD requires removing certain C- duct assemblies of the left- and right-hand thrust reversers from service at certain designated life limits, and also adds airplanes to the applicability. This AD was prompted by new life limits on certain thrust reverser C-duct assemblies. We are issuing this AD to prevent fatigue cracking of the hinges integrated into the 12 o'clock beam of the thrust reversers, which could result in separation of a thrust reverser from the airplane, and consequent reduced controllability of the airplane.