Airworthiness Directives; The Boeing Company Airplanes
airworthiness · Rule · Final rule. · Published 2012-02-29 · Effective 2012-04-04 · 77 FR 12170
Document
Document number
2012-4429
Federal Register citation
77 FR 12170
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
The Boeing Company
Publication date
2012-02-29
Effective date
2012-04-04
FAA docket
Docket No. FAA-2010-0030
Abstract
We are adopting a new airworthiness directive (AD) for all Model 757 airplanes. This AD was prompted reports that several operators have found cracking in the front spar lower chord at the fastener locations common to the side link support fitting at wing station (WS) 292. This AD requires repetitive inspections for corrosion and cracking in this area, and corrective actions if necessary. We are issuing this AD to detect and correct such corrosion and cracking, which, if not corrected, could grow and result in structural failure of the spar.