Summary
We propose to adopt a new airworthiness directive (AD) for all The Boeing Company Model 757 airplanes. This proposed AD was prompted by a report of cracking in the fuselage frame at a certain location. This proposed AD would require inspections for cracking in the fuselage frame, left and right sides, and repair if necessary. We are proposing this AD to detect and correct fuselage frame fatigue cracking that could result in loss of structural integrity and the inability to sustain loading conditions.