Summary
We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-100, -200, -200C, -300, -400, and -500 series airplanes. This proposed AD was prompted by reports from multiple operators that have found fatigue cracking in the corners of the forward galley service doorway. This proposed AD would require repetitive inspections for any cracking of the skin and bear strap doublers in the corners of the forward galley service doorway, and corrective action if necessary. This proposed AD would also provide optional terminating actions for certain repetitive inspections. We are proposing this AD to detect and correct fatigue cracking, which could result in rapid loss of cabin pressure.