Boeing Model 737 100, 200, 200C, 300, 400, and 500 Series Airplanes

Subject: B737 ¿ Main, Forward, and Aft Cargo Door Surround Structure ¿ Comments on Proposed Rule Ladies/Gentlemen: FAA proposes to adopt a new airworthiness directive (AD) for all Boeing 737-100, -200, -200C, -300, -400, and -500 series airplanes. This proposed AD would require repetitive inspections for cracks in the fuselage skin, doubler, bearstrap, and frames surrounding the main, forward, and aft cargo doors; and repair of any cracking. This proposed AD also would require inspections of certain existing repairs for cracking, and related corrective action if cracking is found. ATA appreciates the opportunity to comment on this proposed rule. Our members generally support the intent of the rulemaking; however, additional review and clarification would be desirable on the attached comments. Specifically: ¿Inspections ¿ Clarification is required regarding inspections of existing repairs around the doors. Also the timetable is dependent on sufficient supply of spares. ¿Repair ¿ Similar repair instructions as those for 737- 100/200 airplanes need to be available. Your serious consideration of these observations and comments would be greatly appreciated. Sincerely, Robert Peel Director of Quality Air Transport Association