DEPARTMENT OF TRANSPORTA nON 14910-I3-P] o,r\l"~f:~r[S ~(lvr""'>"M'JOI Federal Aviation Administration 14CFR Part 39 [Docket No. FAA-2008-0669; Directorate Identifier 2007-NM-350-AD; Amendmel 

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## 2-JID<),-,)'6 ,~M-Io, RlN 2120-AA64 Airworthiness Directivesj Boeing Model 737-600, -700, and -800 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ItM loo 

### ,-',,~ ACTION: Fillal ru1c. 

### }~h~~\'\v; ~,,'I'E • SUMMARY: We are adopting anew airworthiness directive (AD) forcertain Boeing I;' 

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# (0-1 Model 737-600, -700, and -800 senes airplanes. This AD requires an inspection orthe free flange, vertical web, and radius between the free flange and veliical web orthe lover ~"M"T'I;---- stringers oft-he wing center section for drill starts, and applicable related investigatIve ""m"m"m"n, ,;"',m,"m,,'-- and con>ectiveactions. This AD results from drill starts being found on the free flange 

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### "1L)lLNG'\''''''''. web orthe lower stringers of the wi.ngcenter section lower stnngers, which could caus 

### '~',"",,"G loss ofstructuralll1tegrity ofthe wing center section and may result in a fuel leak. DATES: This AD is effective [insert date 35 days after date ofpublicatiOil in the FEDERAL REGISTER], The Director of the Federal Register approved the incorporation by reference 0 INITI"" S1G

certain j}ublication listed illthe AD as of [il15el1date 35 days after date of publication il ()\n'INGSHW(ll the FEDERAL REGISTER], ADDRESSES: For service infonnation identified in this AD, contact Boeing Commercial Airplw1cs, Attention: Data & Services Management, P. O. Box 3707, 

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DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 rDocket No. FAA~2008-0669; Directorate Identifier 2007·NM-350-ADj Amendment 39-'*; AD **] RlN 2120-AA64 Ainvorthiness Directivesj Boeing Model 737-600, -700, and -800 Series Airplanes AGENCY: Fcd~raJAviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are adopting anew airworthiness directive (AD) for certain Boeing Model 737-600, -700, and -800 series airplanes. Tbis AD requires an inspectioD ofthe free flange, vertical web, and radius between the free flange and vertical web oflhc low NCURRENUS ROU ,'Ole; SYM60L
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