14CFR Part 39 14910-13-P] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration



# 0'-1'b3 [Docket No. FAA-2010-++++; Directorate ldentifier 2010-NM-065-AD) RIN 2120-AA64 Airworthiness Directives; The Boeing Company Model 757 Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice ofproposed rulemaking (NPRM). SUMMARY: Wepropose to adopt anew airworthiness directive (AD) for all Model? airplanes. This proposed AD would require changing the lower fixed leading edge panel assemblies immediately outboard ofthe nacelles atslats 4 and 7.This proposed AD results 

### from reports of757 airplanes inservice that have drain holes and unsealed panel assemblies inthe fixed leading edge adjacent to the inboard end of slats 4 and 7that are too close to thehot portion ofthe engines. We are proposing Ihis AD to prevent fuel leaking onto anengine and aconsequent fire. DATES: We must receive comments onthis proposed AD by [INSERT DATE 45 DAYS AFTER DATE OFPUBLICATION INTHE FEDERAL REGISTER]. ADDRESSES: You may send comments by any ofthe following methods:

• Federal eRulemaking Portal: Go tohttp://www.regulations.gov. Follow the instructions for submitting conunents.

• Fax: 202-493-2251.

• Mail: U.S. Dcpartment ofTrallsportation, Docket Operations, M-30, West XlNClJRruiNCI,S ROUTING,VMOOL A1J!I\ 

### -1 "m.us'S1G 

### L-~

-~~~ 

### d13!1/>'
IWlJIlNCiSYMfIOL

OL~'lN(] SVMIlOI.

IJAT._' 

## i;;.",~"~ •.,,,,_;;;;;,:-- Building Ground Floor, Room WI2-140, 1200Ncw Jersey Avenue SE., Washington, D 20590.(4910-13-P)

DEPARTMENT OF TRANSPORT AnON Federal Aviation Administration :ONCl)Il.Il.E'fCES Oun"'C'SI'M60L 14CFR Part 39 IDoeket No. FAA-2010-++++; Directorate Identifier 2010-NM-065-AD) R1N 2120-AA64 A1uliH I· 

# P INITIAlSISIG

HGSVMBOL
ACTION: Notice ofproposed rulemaking (NPRM). 

## 4_It-Ie SUMMARY: We propose to adopt anew airworthiness directive (AD) for all Model 75 OI,lnNGSY"WL 

### ,.'1 

## f'J

# 0-1

# 'res airplanes. This proposed AD would require changing the lower fixed leading edge panel r~ITlAlSISIG ~, ''''-f1A(.... assemblies immediately outboard ofthe nacelles atslats 4 and 7.This proposed AD OATE- ~ L. 1'1", 

# 4-v -'0 results from reports of757 airplanes in service that have drain holes and unsealed panel 0<>\'''11 SvmI>O' Ainvorthiness Directives; The Boeing Company Model 757 Airplanes AGENCY: Federal Aviation Administration (FAA), DOT.

assemblies inthe fixed leading edge adjacent to the inboard end of slats 4 and 7that are too close to the hot portion ofthe engines. We are proposing this AD to prevent fuel leaking onto an engine and aconsequent fire. DATES: We must receive comments ontlus proposed AD by [INSERT DATE 45 

## Aiom10Q A SIG DAYS AFTER DATE OF PUBLICATION fNTHE FEDERAL REGISTER]. ADDRESSES: You may send comments by any ?fthe following methods:

• Federal eRulemaking Portal: Go to http://www.refwlarions.!!ov. Follow the instructions for submitting comments.

• FlL" 202-493-2251.

• Mail: U.S. Department ofTransportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey A;.!enueSE., Washington, D NlllAt.Sl$lG 20590. 

## '"
OUTING S'fMBOL
NlTlAlS/SIG14910-13-Pj

DEPARTMENT OF TRANSPORT AnON Federal Aviation Administration 14CFR Part 39 A10[))'II' [Docket No. FAA-2010-++++; Directorate Identifier 2010-NM-06S-AD] RIN 2120-AA64 •• mAlS/SIG 

### \). \.. 'if 

## '" i..I'l~-10 ROUTING SYMCOL
ACTION: Notice ofproposed rulemaking (NPRM). Ainvorthiness Directives; The Boeing Company Model 757 Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. 

### Al\\fYHciC 

# nz lI"lnALSlS1G 

# -n',,),., 6~; DAlE -ft.-I C SUMMARY: Wepropose to adopt anew airworthiness directive (AD) [or all Model 75 OUllNGS'MBI~ 

## /. fJ jJ,
-

## rY-ts airplanes. This proposed AD would require changing the lower fixed leading edge panel ~mAl.SlSIG

. ~. '_~A~ assemblies inuncdiately outboard ofthe nacelles at slats 4 and 7.This proposed AD 00.""" 1'1 •• 4-?? 

# -'0 results from reports of757 airplanes in service that have drain holes and unsealed panel "'95_ assemblies in the fixed leading edge adjacent to the inboard end ofslats 4 and 7that are too close tothe hot portion ofthe engines. We are proposing this AD toprevent fuel leaking onto an engine and aconsequent fire. DATES: Wemllst receive comments onthis proposed AD by [INSERT DATE 45 oun G SY"'l'lOl. f~0m1iX0 "mlAlSlSIG DAYS AFTER DATE OF PUBLICATION INTHE FEDERAL REGISTER]. l)ATE ADDRESSES: You may send comments by any ofthe following methods:

• Federal eRulemaking Portal: Go to http://www.relIulations.gov. Follow the NJTlAJ.SlS1G instructions for submitting comments. 

## ."
• Fax: 202-493-2251.

• Mail: U.S. Department of Transportation, Doc-ke-tOperations, M-30, West Building Ground Floor, Room W12-140, 1200New Jersey N'enue SE., Washington, 0 20590, O\I11HG sYMBOL
NmAl.SlSIG