14910-I3-P)

RlN 2120-AA64

ACTION: Final rule.
ROUl'lNG S ' BOL DEPARTMENT OF TRANSPORT ATION

Ainvorthiness Directives; The Boeing Company Model 767-200, -300, and -300F Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ,.n..'nEl<CES OUllSG sn'''PL Federal Aviation Administration

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## 11+ 14CFR Part 39 

# 7J"~<.j)" 1M"''' [Docket No. rAA-2008-0978j Directorate Identifier 2008-NM-014-ADj Amendment 

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SUMMARY: We are adopting anew airworthiness directive (AD) for certain Model 767-200, -300, and -300F series airplanes. For certain airplanes, this AD requires modifying the fuel quantity indicating system (FQIS) densitometer. Forcertain other airplanes, this AD requires replacing the existing hot short protector (HSP) onthe FQIS SITIAlS!SIG

SG S·"",lIOl densitometer with anew HSP. This AD also requires revising the Airworthiness Limitations (AWL) section ofthe Instructions for Continueq Airworthiness to incorporat "", AWL No. 28-AWL-22. This AD results from fuel system reviews conducted bythe manufacturer. We arc issuing this AD to prevent the center tank fuel densitometer from LN'TLM."'."G overheating and becoming apotential ignition source inside the center fuel tank, which, incombination with flammable fuel vapors, could result inacenter fuel tank explosion 

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and consequent loss afthe airplane. DATES: This AD iseffective [insert date 35 days after date ofpublication inthe FEDERAL REGISTER].
INITIA'$IS'G The Director ofthe Federal Register approved the incorporation byreference of certain publications listed inthe AD as of [insert date 35 days after date ofpublication in OAr. the FEDERAL REGISTER].14910-13-PI

DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14CFR Part 39 (Docket No. FAA-2008-0978j Directorate Identifier 200S-NM-014-AD; Amendment 

## p W\~ 39-**; AD **1 RIN 2120-AA64 Airworthiness Directives; The Boeing Company Model 767-200, -300, and -300F Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are adopting anew airworthiness directive (AD) forcertain Model 767-200, -300, and -300F series airplanes. Forcertain airplanes, this AD requires modifying the fuel quantity indicating system (FQIS) densitometer. Forcertain other airplanes, this AD requires replacing the existing hot short protector (l-ISP)onthe FQIS 

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ounNC; sYMIIOL manufacturer. Weare issuing this AD to prevent the center tank fuel densitometer from densitometer with anew HSP. This AD also requires revising the Airworthiness OIfTJ,NGsn'eOl. Limitations (AWL) section ofthe Instructions for Continued Airworthiness to incorporat NITIA~~ -I

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# 2./' AWL No. 28-AWL-22. This AD results from fuel system reviews conducted by the
overheating and becoming apotential ignition source inside the center fuel tank, which, incombination with flammable fuel vapors, could result in acenter fuel tank explosion and consequent loss ofthe airplane. DATES: This AD is effective [insert date 35 days after date ofpublication inthe 

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FEDERAL REGISTER]. The Director ofthe Federal Register approved the incorporation by reference of certain publications listed inthe AD asof [insert date 35 days after dale ofpublication in the FEDERAL REGISTER].(4910-13-Pj

DEPARTMENT OF TRANSPORT AnON Federal Aviation Administration 14CFR ParI 39 (Docket No. FAA-2008-0978; Directorate Idcntifier 2008-NM-OI4-AD; Amendment PL\iil:J!!Il ~39-**'AD **}

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# , RlN 2120-AA64 Ain't'orthiness Directives; The Boeing Company Model 767-200, -300, and -300F Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. ATt 

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SUMMARY: Weare adopting anew airworthiness directive (AD) for certain Model 767-200, -300, and -300F series airplanes. Forcertain airplanes, this AD requires modifying the fuel quantity indicating system (FQIS) densitometer. For certain other airplanes, this AD requires replacing the existing hot short protector (HSP) onthe FQIS 

# o densitometer with anew HSP. This AD also requires revising the Airworthiness 0IJil!'G5TI'1&Ol Limitations (AWL) section ofthe Instructions for Continued Airworthiness to incorporat 

### ~G-(Cb5 AWL No. 28-AWL-22. This AD results from fuel system reviews conducted by the manufacturer. Weare issuing this AD toprevent the center tank fuel densitometer from overheating and becoming apotential ignition source inside the center fuel tank, which, incombination with flammable fuel vapors, could result in acenter fuel tank explosion and consequent loss ofthe airplane. DATES: This AD is effective [insert date 35 days after date ofpublication inthe FEDERAL REGISTER). The Director ofthe Federal Register approved the incorporation by reference of certain publications listed inthe AD as of (insert date 35 days after date ofpublication in the FEDERAL REGISTER). 

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