14910-13-P]

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR ParI 39

~Doc_ket No. FAA-2010-0761j Directorate Identifier 2010-NM-069-ADj Amendmen

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RIN 2120-AA64

Ainvorthiness Directives; TIle Boeing Company Model 737-100, -200, -200e, -300,

-400, and -500 Series Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

SUMMARY: We are adopting a new airworthiness directive (AD) for the products liste

above. This AD requires installing two warning level indicator lights on the P2-2 center

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instrument panel in the flight compartment for certain airplanes. For a certain other I .

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aIrplane, this AD requires activating the cabin altitude warning and takeoff configuratiol

warning lights. For all airplanes, this AD also requires revising the airplane flight manua NII'IMSI,I"

to remove certain requirements included by previous AD actions, requires new pressure

altitude limitations for certain airplanes, and advises the flightcrew ofthe following

changes: revised emergency procedures to use when a cabin altitude warning Or rapid

depressurization occurs, and revised cabin pressurization procedures for normal k,,,,c-c ----

operations. This AD was prompted by a design change in the cabin altitude warning

system that would address the identified unsafe condition. We are issuing this AD to

prevent failure of the flightcrew to recognize and react to a valid cabin altitude warning Iwro

horn, which could result in incapacitation of the flightcrew due to hypoxia (lack of

oxygen in body), and consequent loss of control of the airplane. lNITIAL'i.'S[~

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

PUBLICA nON IN THE FEDERAL REGISTER].

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[4910-I3-Pj

DEPARTMENT OF TRANSPORTATION

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warning lights. For all ai.rplanes, this AD also requires revising the airplane flight manu

instrument panel in the flight compartment for certain airplanes. For a certain other

airplane, this AD requires activating the cabin altitude warning and takeoff configuration

depressurization occurs, and revised cabin pressurization procedures for normal

system that would address the identified unsafe conditLon. We are issuing this AD to

altitude limitations for certain airplanes, and advises the flightcrew of the following

to remove certain requirements included by previous AD actions, requires new pressure

changes: revised emergency procedures to use when a cabin altitude warning or rapid

operations. This AD was prompted by a design change in the cabin altitude waming

Airworthiness Directives; The Boeing Company Model 737-100, -200, -200e, -300,

-400, and -500 Series Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: FinallUle.

SUMMARY: We are adopting a new airworthiness directive (AD) for the products liste

above. This AD requires installing two warning level indicator lights on the P2-2 center

RlN 2120-AA64

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[Docket No. FAA-2010-0761; Directorate Identifier 2010-NM-069-AD; Amendment ~), rn I

39-**; AD  -** -**1

Federal Aviation Administration

14 CFR Par139

prevent failure of the flightcrew to recognize and react to a valid cabin altitude waming

horn, which could result in incapacitation of the flightcrew due to hypoxia (lack of

oxygen in body), and consequent loss of control of the airplane.

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

PUBLICATION IN THE FEDERAL REGISTER].
[4910-13-PI

DEI'ARTMENT OF TRANSPORTATION

Federal Aviation Administration ""-':U",'U "«(5

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14 CFR Poet 39 t14L&Ul!.L

[Docket No. FAA~201 0-0761; Directorate Identifier 201 O-NM-069-AD; Amendment '''~;',:'Il~tbm ~."

RIN 21211-AA64

Airworthiness Directives; The Boeing Company Model 737- I 00, -200, -200e. -300,

-400, and -500 Series Airplanes

ACENCY: Federal Aviation Admlllistration (FAA), DOT.

ACTION: Final rule.

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SUMMARY: We /lrc adopting a new airwol-thincss directive (AD) for the products li~;tc\ I?.. If) I(}

above. This AD requires installing two warning level indic~ltor lights on the P2-2 center ~'J@1'~"l1os

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instrument panelm the Oight compartmcm for certain aillJbncs. For a certain olher /

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airplane. this AD requires activating lbe cabin allitude waming and takeoff configuration

waming lights. For all airplanes, this AD also requires revising the airplane night manua

to remo\'e certain requirements included by previous AD actions, requires new pressure

altitude lil1lit81ions for certain airplanes, and advises the flighterew of the following

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changes revised emergency procedures to LIsewhen a cabin altitude \\laming or rapid

dqxessurizalioll occurs, and revised cabin pressurization procedures for normal

operations_ This AD was prompted by a design change in the cabin altitude warillng

system that would address the idel1tificd unsafe comillion. We arc issuing this AD to

prevent failure of the f1Jghtercw!o recognizc and rcac! to a valid cabin altitude ,\"lIming

horn, \vllleh could result in incapacilmion of tile fllghtcrew oue to bypoxia (lack or

oxygen in body), and conseqtlcn1 loss of camral of the airplane.

OATES: This AD is efrective [INSERT DATE 35 DAYS AFTER DATE OF

PUBLICATION IN THE FEDERAL R.EGISTER).

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