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Notice of proposed rulemaking (NPRM).

We propose to adopt a new airworthiness directive (AD) for all The Boeing Company Model 757-300 series airplanes. This proposed AD was prompted by reports of scribe line damage on fuselage skin. This proposed AD would require detailed inspections of fuselage skin for the presence of scribe lines, and applicable on-condition actions. We are proposing this AD to address the unsafe condition on these products.

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