Airworthiness Directives; Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Airplanes
airworthiness · Rule · Final rule; request for comments. · Published 2015-09-02 · Effective 2015-09-17 · 80 FR 52941
Document
Document number
2015-21465
Federal Register citation
80 FR 52941
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Lockheed Martin Corporation/Lockheed Martin Aeronautics Company
Publication date
2015-09-02
Effective date
2015-09-17
FAA docket
Docket No. FAA-2014-0779
Abstract
We are adopting a new airworthiness directive (AD) for all Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Model 382, 382B, 382E, 382F, and 382G airplanes. This AD requires replacing the center wing box (CWB) and certain outer wings. This AD was prompted by an evaluation by the design approval holder (DAH) indicating that the CWB and outer wings are subject to widespread fatigue damage (WFD). We are issuing this AD to prevent fatigue cracking of the outer wings and the lower surface of the CWB, which could result in reduced structural integrity of the airplane.