Summary
We are adopting a new airworthiness directive (AD) for all Boeing Model 727 airplanes. This AD requires repetitive external high frequency eddy current (HFEC) inspections of the crown skin for cracks at certain stringer attachment holes, and repair if necessary. This AD results from a report of cracks at multiple locations on certain areas of the crown skin. We are issuing this AD to detect and correct fatigue cracks of the crown skin, which could result in rapid decompression of the airplane.
Directive Details
AD Number
FAA-2007-28884
Document Number
E8-1129
Type
Rule
Publication Date
January 24, 2008
Effective Date
February 28, 2008
Affected Manufacturer
Boeing Model 727
Criticality
important
Emergency
No
Docket ID
Docket No. FAA-2007-28884
Topics
Official Documents
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