Airworthiness Directives; Boeing Model 727 Airplanes
airworthiness · Rule · Final rule. · Published 2008-01-24 · Effective 2008-02-28 · 73 FR 4053
Document
Document number
E8-1129
Federal Register citation
73 FR 4053
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Boeing Model 727
Publication date
2008-01-24
Effective date
2008-02-28
FAA docket
Docket No. FAA-2007-28884
Abstract
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.