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and override pumps with new, improved relays having a ground fault interrupter (GFI)

feature. This AD results from fuel system reVi+s conducted by the manufacturer. We """

are issuing this AD to prevent pump housing burn-through due to electrical arcing, whic 7-2t...-/O

could create a potential ignition source inside a rUel tank. This condition, in combination :~:,,:::::'''''"''.

with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of

DATES: This AD is effective [INSERT DATE 35 DAYS AFTER DATE OF

PUBLICATION IN THE FEDERAL REGISTER].

ADDRESSES: For service information identifikd in this AD, contact Boeing

Commercial Airplanes, Attention: Data & Serv.lces Management, P. O. Box 3707, MC

the airplane.

The Director of the Federal Register aPlTOved the incorporation by reference of

certain publication listed in the AD as of [INSERT DATE 35 DAYS AFTER DATE OF

PUBLICATION IN THE FEDERAL REGISTER].

Airworthiness Directives; The Boeing Company Model 737-600, -700, -700e, -800,

and -900 Series Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

SUMMARY: We are adopting a new airworthiness directive (AD) for certain Model

737-600, -700, -700e, -800, and -900 series airplanes. This AD requires replacement of

the power control relays in the P91 and P92 power distribution panels for the fuel boost

14 CFR Part 39

Fede.-al Aviation Administration

{Docket No. FAA-2008-0269; Directorate Identifier 2007-NM-320-ADj Amendmeo

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R1N 2120-AA64
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DEPARTMENT OF TRANSPORT AnON

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(Docket No. FAA-2008-0269; Directorate Identifier 2007-NM-320-ADj Amendment e.-.Q:t-e .•..::o()

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Ainvorthiness Directives; The Boeing Company Model 737-600, -700, -700e, -800,

and -900 Series Airplanes

AGENCY: Federal Aviation Administration (F:AA), DOT.

ACTION: Final rule.

SUMMARY: We are adopting a new airworthiness directive (AD) for certain Model

737-600, -700, -?ooe, -800, and -900 series airplanes. This AD requires replacement of

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the power control relays in the P91 and P92 power distribution panels for the fuel boost I

and override pumps with new, improved relays having a ground fault interrupter (GFI)

feature. This AD results from fuel system reviews conducted by the manufacturer. We

are issuing this AD to prevent pump housing blUlJ-through due to electrical arcing, whic Mrn-H5!J!?

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could create a potential ignition source inside a fuel tank. This condition, in combinatio ~

with tlammable fuel vapors, could result in a fut tank explosion and consequent loss of A ~

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the airplane.

DATES: This AD is effective [INSERT DATE 35 DAYS AFTER DATE OF

PUBLICATION IN THE FEDERAL REGISTER].

The Director of the Federal Register approved the incorporation by reference of

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certain publication listed in the AD as of [INSERT DATE 35 DAYS AFTER DATE OF

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PUBLICATION IN THE FEDERAL REGISTBR].

ADDRESSES: For service information identifiL in this AD, contact Boeing

Com.mercial Airplanes, Attention: Data & Servi~es Management, P. O. Box 3707, MC