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Ainvorthiness Directives; The Boeing Company Model 737-200, -300, ADO, and -500

14 CFR Part 39

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RIN 2120-AA64 fIv.J

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DEPARTMENT OF TRANSPORT ATION

Federal Aviation Administration

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applies to certain Model 737-300, -400, and -50@series airplanes. That AD currently

ACTION: Final rule.

"' requires an inspection to detennine the manufacturer and manufacture date of the oxyge

(DOT)

•

AGENCY: Federal Aviation Administration (F'AA), Department of Transportation

Series Airplanes

SUMMARY: The FAA is superseding an existing airworthiness directive (AD), which

masks in the passenger service unit and the lavatory and attendant box assemblies,

corrective action if necessary, and other specifiek action. This new AD expands the ~",,,,,-, ----

applicability in the existing AD. This AD resultl from a determination indicating that ROuT1NGsnlBOL

additional airplanes may be subject to the identified unsafe condition. We are issuing thi r~"IAlSISIG

AD to prevent the in-line flow indicators of the passenger oxygen masks from fracturing p,\Tli

and separating, which could inhibit oxygen floJ to the masks and consequently result in I«JUTINGSYM>lPL

exposure of the passengers and cabin attendants to hypoxia foHowing a depressurization 1~11"'1.&'51"

event. I)A"j'

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

PUBLICATION IN THE FEDERAL REGISTER].

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14910-13-r)

DEr ARTMENT OF TRANsrORTA nON

Fede.-al Aviation Administration ONCVRRENCES

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RIN 2120-AA64

Airworthiness Directives; The Boeing cornpJ'y Model 737-200, ~300, -400, and -500

Series Airplanes

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ACTION: Final rule.

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AGENCY: Federal Aviation Administration (F'AA), Department of Transportation

SUMMARY: The FAA is superseding an existing airvlOrthiness directive (AD), which

applies to certain Model 737-300, AOO, and -50@seriesairplanes. That AD currently

masks in the passenger service unit and the lavatory and attendant box assemblies,

requires an inspection to determine the manufacturer and manufacture date of the oxyge

exposure of the passengers and cabin attendants to hypoxia following a depressurization

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applicability in the existing AD. This AD result, from a determination indicating that 5~"?A.V 'v,,-,

additional airplanes may be subject to the identified unsafe condition. We are issuing thi 4/-.",11'Q.

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AD to prevent the m-lme flow mdlcators of the passenger oxygen masks from fracturmg ~IDQ:)

and separating, wh.ich could inhibit oxygen floJto the masks and consequently result in Itlt I IG

corrective action if necessary, and other specifiep action. This new AD expands the

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event.

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

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PUBLICATION IN THE FEDERAL REGISTER].

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14910-13-PJ

DEPARTMENT OF TRANSPORT ATION

Federal Aviation Administration

14 CFR Part 39

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Ainvorthiness Directives; The Boeing Company Model 737-200, -300, -400, and -500

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

I

(DOT).

ACTION: Final rule.

requires an inspection to determine the manufacturer and manufacture date of the oxyge "T

SUMMARY: The FAA is superseding an existing airworthiness directive (AD), which

applies to certain Model 737-300. -400, and -500 series airplanes. That AD currently

corrective action if necessary, and other specified action. This new AD expands the

applicability in the existing AD. This AD results from a determination indicating that

additional airplanes may be subject to the identifi~d unsafe condition. We are issuing thi

masks in the passenger service unit and the lavatory and anendant box assemblies,

AD to prevent the in-line flow ind.icators of the passenger oxygen masks from fracturin

NIT1A"S/SIG

and separating, which could inhibit oxygen flow to the masks and consequently result in

exposure of the passengers and cabin attendants to hypoxia following a depressurization

event.

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

NI11.o.I5/SIG

PUBLICATION IN THE FEDERAL REGISTER].

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