14 CFR Part 39

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DEPARTMENT OF TRANSPORT AnON

Federal Aviation Administration

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(Docket No. FAA-2010-+++++; Directorate Identifier 2009-NM-252-AD]

RlN 2120-AA64

Airworthiness Directives; McDonnell Douglas Corporation Model MD-l1 and MD-I

Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: We propose to adopt a new airworthiness directive (AD) for certain Mo

MO-II and MD-il F airplanes. This proposed AD would require a one-time inspection

detect damage of the wire assemblies of the tail tank fuel system, and corrective action

necessary. This proposed.W results from fuel system reviews conducted by the

manufacturer. We are proposing this AD to prevent a potential of ignition sources insid

fuel tanks, which, in combination with flammable vapors, could result in a fuel tank fir

or explosion and consequent loss of the airplane.

DATES: We must receive comments on this proposed AD by [insert date 45 days after

date of publication in the FEDERAL REGISTER].

ADDRESSES: You may send comments by any of the following methods:

• Federal eRulemaking Portal: Go to hnp:l/ww'.v.re2ulations.gov. Follow the

instructions for submining comments.

• Fax: 202-493-2251.

• Mail: U.S. Department of Trans po nation, Docket Operations, M-30, West

Building Ground Floor, Room WI2-140, 1200 New Jersey Avenue SE., Washington,

20590.

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DEPARTMENT OF TRANSPORTATION

Federal A"iation Administration

14 CFR Part 39

[Docket No. FAA-2010-1 I I If; Directorate Identifier 2009-NM-252-ADI

RlN 2120-AA64

Ainvorthiness Directives; McDonnell Douglas Corporation Model MD-ll and MD-ll F

Airplanes

AGENCY: Federal Aviation Admjnistration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

SU1\1MARY; We propose to adopt a new airworthiness directive (AD) for certain Model

MD-ll and MD41lF airplanes. This proposed AD would require a one-time inspection to

detect damage afme wire assemblies of the tail tank fuel system, and corrective actions if

necessary. This proposed AD results from fuel system reviews conducted by the

manufacturer. We are proposing this AD to prevent a potential of ignition sources inside

fuel tanks, which, in combination with flammable vapors, could result in a fuel tank fire

or explosion and consequent loss of the airplane.

DATES; We must receive comments on this proposed AD by (insen date 45 days after

date of publication in the FEDERAL REGISTER].

ADDRESSES: You may send corrunents by any of the following methods:

• Federal cRuJemaking Portal: Go to http://www.regulations.!!ov. Follow the

instructions for submitting comments.

• Fax: 202-493-2251.

• Mail: U.S. Department of Transportation. Docket Operations, M-30, West

Building Ground Floor, Room WI2-140, 1200 New Jersey Avenue SE., Washington, DC

20590.

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FAA Form 1360-14.1 (6-89} OFFICIAL FILE COPY