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RIN 2120-AA64

[4910-13-P]

Federal Aviation Administration

listed above. This proposed AD would require replacing the existing unshielded fuel

Airworthiness Directives; The Boeing Company Model 727, 727C, 727-100, 727-100

727-200, and 727-200F Series Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

quantity indication system (FQIS) wire bundles with double shielded FQIS wire bundle , ~f

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installing a new wire feed through fitting, and grounding the wire shields, as applicable; $"MIIO

[Docket No. FAA-2010-++++; Directorate Ideotifier 2010-NM-226-AD)

ACTION: Notice of proposed mlemaking (NPRM).

SUMMARY: We propose to adopt a new airworthiness directive (AD) for the products

14 CFR Part 39

DEPARTMENT OF TRANSPORTATION

and doing repetitive low frequency eddy current (LFEC) inspections for cracking uftbe ilIln"l.S'SlG

fuselage skin, and corrective actions if necessary, This proposed AD also would requITe um

revising the maintenance program to incorporate certain airworthiness limitations, This J«)ur!~'mMIl()I,

proposed AD was prompted by fuel system reviews conducted by the manufacturer. We INITIALS/SKi

are proposing this AD to increase the level of protection from lightning strikes and om

prevent the potential of ignition sources inside fuel tanks, which, in combination with iTI:I'GSI'MOOI.

flammable fuel vapors, could result in fuel tank explosions and consequent loss of the

airplane.

DATES: We must receive comments on this proposed AD by [INSERT DATE 45 SYl>!1lO1.

DAYS AFTER DATE OF PUBLICA nON IN THE FEDERAL REGISTER].

ADDRESSES: You may send comments by any of the following methods:
14910-13-PI

DEPARTM.ENT OF TR"NSPORTATION :U>=.~I""lS

wn"..;s,><a(O;

listed above. This proposed AD would require replacing the existing unshielded fuel ••••~-- J

AN1\(- 1 os

quantity indication system (FQIS) wire bundles with double shielded FQIS wire bundles ~~~f1L

proposed AD was prompted by fuel system revieivs conducted by the manufacturer. We

are proposing this AD to increase the level of protection from lightning strikes and

prevent the potential of ignition sources inside rJel tanks, which, in combinaiion with

revising the mainlenance program to incorporate certain airworthiness limitations. This

and doing repetit.ive low frequency eddy current (LFEC) inspections for cracking afme

fuselage skin', and corrective actions if necessary] This proposed AD also would require

installing a new wire feed-through fining, and grounding the wire shields, as applicable;

IDocket No. FAA-2010-++++; Directorate Identifier 20JO-NM-ZZ6-ADI

Airworthiness DiI"ectives; The Boeing Company Model 727> 727C, 727-100, 727- J 00

727-200, and 727-200F Series Airplanes

RIN 2120-AA64

ACTION: Notice of proposed rulemaking (NPRM).

AGENCY: Federal Aviation Administration (FAA), DOT.

SUi\fMARY: We propose to adopt a new airworthiness direc.tive (AD) for the products

Federal Aviation Administration

14 CFR Part 39

Oammable fuel vapors, could result in fuel tank ~.''(plosions and consequent loss of the "'3

_<l<1Tl .S',t<I>;)L

airplane.

DATES: We must receive comments on this proposed AD by [INSERT DATE 45

"

DAYS AFTER DATE OF PUBLICATION IN rFEDERAL REGISTER).

ADDRESSES: You may send comments by any of the following methods:
14910-I3-PI

DEPARTMENT OF TRo\.i\'SPORT ATION "'~=O"-'~L~

·tlc·n»-~ ~,.",~'"

,~!:!:{/'!

,A.-F,Uj~

listed above. This proposed AD would require replacing the existing unshicldcd fuel """·0 Son""" 3

JtNfIt- { os

quantity indication system (FQIS) wire bundles \IVith double shielded FQlS wire hUlldlcs .~~lf-~-':-

/t, V

installing a new wire feed-through fitting, and grounding lhc wire shields, as aprlicable; J'-f.

n/,/" and doing repetitive low frequency eddy current (LFEC) inspections for cracking of the "'-""."S'~"'''' "IN,:'- tooY"

IDocket No. F'AA-201O-++++; Directorate Identifier 2010~NM-226-Anl

727-200, and 727-200F Series Airplanes

I

AGENCY: Pedcral Avi<.ltion Administration (FtA), DOT.

ACTION: Notice of proposed nllemaking (NPRM).

SUMMARY: We propose to adopt a new air"./orthiness directive (AD) for the products

Airworthiness Directins; The Boeing Company Model 727, 727C, 727-100, 727-10

RI N 2120-A ...,\64

14 CFR Pan 39

Federal AVi'ltion Administration

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fuselage skin, and corrective actions if necessary. This proposed AD also would require

revising the maintenance program to incorporate certain ainvorthiness limitations. This

pmposed AD was prompted by fuel system ,.e,+,,, concic.ctcd by Ihe manuI:.ctuccL We

arc proposing this AD to increase the level of protection from lightning strikes and

prevem the potential of ignition sources inside file! tanks, which, in combinatioll \vith

nammable fuel vapors, could result in fuel tank explosions and consequent loss of the

airplane.

DATES: We must receive comments on this proposed AD by [INSERT DATE 45

DA YS AFTER DATE OF PUBLICATION IN THE FEDERAL REGJSTER}.

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

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