14910-13-U]

DEPARTMENT OF TRANSPORT AnON

14 CFR Part 39

Federal Aviation Administration

17.2..0

(Docket No. FAA-2009-1 : I I Ij Directorate Identifier 2009-N1\1-149-ADj

\~lw4- .

'Amendment 39-"; AD 2008-10-10 Rl]

R1N 2120-AA64

mmAL.s,qIG

V· r"" etvm

1\/30 oq

~~

AiJrtH'ioS

Airworthiness Directives; Boeing Mode1737-600, -700, -70De, -800, and -900 Series

Airplanes

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

.~

That AD currentJy requires revising the Airworthiness Limitations (AWLs) section ofth E"/ J

I.t- iu/01

Instructions for Continued Airworthiness by incorporating new limitations for fuel tank wn,NG SYI1!lOl

trrJ." - 7

systems to satisfy Special federal Aviation Regulation No. 88 requirements. This AD 1iITlAl.S.'S •••

c..(/<-.>...-

applies to certain Boeing Model 737-600, -700, -70De, -800, and -900 series airplanes. ~

ACTION: Final rule; request for comments.

SUMMARY: The FAA is revising an existing airvo/Orthinessdirective (AD), which

(DOT).

also requires the initial inspection of a certain repetitive A\VL inspection to phase in tha

inspection, and repair if necessary. This AD clarifies the intended effect of the AD on OVllNG SYHSDL

spare and on-airplane fuel tank system components. This AD results from a design

review of the fuel tank. systems. We are issuing this AD to prevent the potential for

ignition sources inside fuel tanks caused by latent failures, alterations, repairs, or

- I

"ITlAl.S{SIG

, d Ii &0<>-...

'"/jjJ.:J./ D

OlJl1NG SYHOOL

maintenance actions, which, in combination with flammable fuel vapors, could result in ~1- 16

~=

fuel tank explosion and consequent loss of the airplane.

-

DATES: This AD is effective [insert date 15 days after date of publication in the

FEDERAL REGISTER].
f4910-13-u]

DEPARTMENT OF TRANSPORT AnON

Fedcnl Aviation Administration '·ONO.J"""'1l:~5

Ol,InNG SYMBOL

14CFR Part 39

(Docket No. FAA-2009·1 I t t Ij Directorate Identifier 2009-NM-149-AD;

J,'HOi¥S f--

~~

/).-B-o f

out,"~ Symt,ol

A ,st>L-'oDS

Nm"l.SJSIG

."

OllTl,"'G SYMBOl.

,

"ll1ALS,ISIG

."

0IITl'IG SYMBOl

NITLAISISIG

m

~"'"'"

N/llALS/S1G

."

~~"'"'"

N!TlALS/SIG

.~

applies to certain Boeing Model 737-600, -700, -700e, -800, and -900 series airplanes.

SUMMARY: The fAA is revising an existing airworthiness directive (AD), which

also requires the initial inspection of a certain repetitive AWL inspection to phase in tha

inspection, and repair if necessary. This AD clarifies the intended effect of the AD on

systems to satisfy Special Federal Aviation Regulation No. 88 requirements. This AD

Instructions for Continued Airworthiness by incorporating new limitations for fuel tank

That AD currently requires revising the Airworthiness Limitations (AWLs) section ofth

ACflON: Final 1111e; request for comments.

(DOT).

Airplanes

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

spare and on-airplane fuel tank system components. This AD results from a design

review of the fuel tank systems. We are issuing this AD to prevent the potential for

ignition sources inside fuel tanks caused by latent failures, alterations, repairs, or

maintenance actions, which, in combination with flammable fuel vapors, could result in

fuel tank explosion and consequent loss of the airplane.

DATES: This AD is effective [insert d~te 15 days after date of publication in the

FEDERAL REGISTER].

.Amendment 39-**; AD 2008-10-10Rlf 11/30 oq

~""""

R1N2120-AA64 ilcNrr'H'fas

tlmAlS{SlG .x:,/P'

Ainvorthincss Directives; Boeing Model 737-600, -700, -700e, -800, and -900 Series K. --;?IIP'