14910-I3-P)

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

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IDocket No. FAA-2007-2834aj Directorate Identifier 2007-NM-060-ADj

105'30~0 _ .,;j II

Amendment 39_*"'; AD "'*] ~ U I0 .-r.I- ~/ -

RIN 2120-AA64

Airworthiness Directives; Boeing Model 737-600, -700, -700C, -800, and -900 Series

Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of Transportation

(DOT).

ACTION: Final rule.

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for certain

Boeing Model 737-600, -700, -70De, -800 and -900 series airplanes. This AD requires

sealing the fasteners on the front and rear spars inside the main fuel tank and on the low

panel of the center fuel tank, inspecting the wire bundle support installation in the

equipment cooling system bays to identify the type of clamp installed and determine

whether{~ Tenon sleeve is installed, and doing related corrective actions if necessary.

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This AD results from a design review of the fuel tank systems. We arc issuing this AD t ~»/it)

prevent arcing at certain fuel tank fasteners in the event of a lightning strike or fault

current event, which, in combination with Oammable fuel vapors, could result in a fuel

tank explosion and consequent loss of the airplane.

DATES: This AD becomes 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

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

PUBLICATION IN THE FEDERAL REGISTER].

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[4910-13-Pj

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

IDocket No. FAA-2007-28345; Directorate Identifier 2007-NM-060-AD;

Amendment 39-**; AD **]

NlTlALSlS1G

'"

RIN 2120-AA64

Airworthiness Directives; Boeing Model 737-600, -700, -lODe, -800, and -900 Series

Airplanes

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AGENCY: Federal Aviation Administration (FAA), Department of Transportation

(DOT).

ACTION: Final rule.

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for certain

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Boeing Model 737-600, -700, -lODe, -800 and -900 series airplanes. This AD requires

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equipment cooling system bays to identify the type of clamp installed and determine

whether4€ Teflon sleeve is installed, and doing related corrective actions if necessary.

scaling the fasteners on the front and rear spars inside the main fuel tank and on the low ATE

panel of the center fuel tank, inspecting the wire 'bundle support installation in tbe

This AD resutts [rom a design revie\v of the fuel t!IDk systems. We arc issuing this AD t

prevent arcing at certain fuel tank fasteners in the event of a lightning strike or fault

current event, which, in combination with flammable fuel vapors, could result in a fuel

tank explosion and consequent loss of the airplane.

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

PUBLICATION TN THE FEDERAL REGISTER].

NI11AlSIS1G

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

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

OVTItIG StMBOl

PUBLICATION IN THE FEDERAL REGISTER].

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