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DEPARTMENT OF TRANSPORT AnON

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ANM-116

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Airwortbiness Directives; Gulfstream Aerospace LP (Type Certificate Previously Held ANM-116

Federal Aviation Administration

R1N 2120-AA64

0t556

[Docket No. FAA-2010-*****; Directorate Identifier 2010-NM-053-ADJ

14 CFR Part 39

by Israel Aircraft Industries, Ltd.) Model Galaxy and Gulfstream 200 Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed 111lemaking (NPRM).

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

listed above. This proposed AD results from mandatory continuing airworthiness

information (MeAl) originated by an aviation authority of another country to identify

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and COTTecian unsafe condition on an aviation product. The MCAI describes the unsafe

condition as:

Extension of airbrakes above 360 KIAS [knots indicated air spced]/O. 79

Mj [Mach indicated] results in aerodynamic driven vIbration oflhe

airbrake which, ifnot limited per Revision 14 to the AFM [airplane flight

manual], can lead to high cycle fatigue failure of the airbrake in-board

hinge.

The unsafe condition is high cycle fatigue oftbe airbrake in~board hinge, which can

result in loss of the airbrake, which in turn can lead to reduced controllability of the

airplane. The proposed AD would require actions that are intended to address the unsafe

condition described in the MCAL

DATES: We must receive comments on this proposed AD by [INSERT DATE 45
14910-13-PI

DEPART;\1ENT OF TRANSPORTATION

Federal Aviation Administrntion

14 ern Part 39 "",,~"""'>lU

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lDocker No. FAA~2010-·****; Directorate Jdentifier 2010-NM-053-ADj

RIN 2120-.4..4064

Airworthiness Directives; Gulfstrcam Aerospace LP (Type Certificate Previously Held

,

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by Israel Aircraft industries, Ltd,) Model Galaxy and GulfslTeam 200 Airplant::s

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AGENCY: Federal Aviation Administration (FAA), DOT.

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I.GU-/leG

ACTION: Notice of proposed rulcma.!,:iog(NPRM).

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

listed above. This proposed AD results from mandalOry iontinuing airworthmess

information (MeAl) originated by an aviation authority ranother country to identify

and correCI an unsafe condition on an aviation product. The MeAL describes the unsafe "

condition as:

Extension of airbrakcs above 360 KlAS [1-.11015in'dicated air 5pecd]/O.79

Mi [Mach indicated] results in aerodynamic driv~n vibration of the

airbrake which. if nor limited per Revision 14 to the AFM [airplane flight

manual], can lead to high cycle fatigue failure of~he airbrakc in-bO;Jrd

hinge.

'I'm•.••• '

The unsafe condition is high cycle fatigue of the airbrake in-board hinge. which can

I

result in loss of the airbrake. which in turn can lead to reduced controllability of the

,

airplane. The proposed AD would require actions that ::1ft intended to address the unsafe

"':

condition described in the MeAl. .,

DATES: We must reccive comments on this proposed AD by [lNSERT DATE 45

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