Fri, May 11, 2012
AD NUMBER: 2012-09-04
PRODUCT: The Boeing Company Model 767-200, -300, -300F, and -400ER Series Airplanes
SUBJECT: Airworthiness Directive 2012-09-04
ACTION: Final Rule
SUMMARY: The FAA is superseding an existing airworthiness directive (AD) that applies to The Boeing Company Model 767-200, -300, and -300F series airplanes. That AD currently requires inspections to detect cracking or corrosion of the fail-safe straps between the side fitting of the rear spar bulkhead at body station 955 and the skin; and follow-on and corrective actions. This new AD expands the applicability; and adds an inspection for cracking in the fail-safe strap, and repair or replacement if necessary.
This AD was prompted by additional reports of cracks in 51 fail-safe straps on 41 airplanes; we have also received a report of a crack found in the 'T' fitting that connects the fail-safe strap to the outboard edge of the pressure deck. The FAA is issuing this AD to detect and correct fatigue cracking or corrosion of the fail-safe straps and the "T" fittings, which could result in cracking of adjacent structure and consequent reduced structural integrity of the fuselage.
DATES: This AD is effective June 11, 2012.
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