Airworthiness Directives; The Boeing Company Airplanes
airworthiness · Rule · Final rule. · Published 2019-12-20 · Effective 2020-01-24 · 84 FR 70000
Document
Document number
2019-27465
Federal Register citation
84 FR 70000
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
The Boeing Company
Publication date
2019-12-20
Effective date
2020-01-24
FAA docket
Docket No. FAA-2019-0406
Abstract
The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model MD-90-30 airplanes. This AD was prompted by reports indicating that certain center wing stringers and skins are potentially susceptible to cracking. This AD requires repetitive eddy current, low frequency (ETLF) inspections of the left and right side fastener holes for any crack; repetitive eddy current, high frequency (ETHF) inspections of the lower skin for any crack; and repair if any crack is found. The FAA is issuing this AD to address the unsafe condition on these products.