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DEPARTMENT OF TRANSPORTATION <OAAC""

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Federal Aviation Administr"ation ANM ...-'1

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14 CFR Part 39 07--J...b r;.~

[Docket No. FAA-2010-++++; Directorate identifier 2010-NM-034-ADj Amendment "J/S/t 0

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Ainvortbiness Directives; LeaIjet Inc. Model 45 Airplanes :3...5 -111

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AGENCY: Federal Aviation Administration (FAA), DOT. ANn -[bL

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ACTION: Final rule; request for comments.

SUMMARY: We are adopting a new amvorthlless directive (AD) for certain Model 45

airplanes. This AD requires a general visual mspection for cracked and missing bal1Sere\';I'rJ/J.~

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assembly sleeves of the flap actuator, repetltlve non-destructive liqUId penetrant o:~.

inspections of each sleeve or flap actuator for cracks, and replacement or modification of T3/'llt-o

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the flap actuator if necessary. This AD results from reports of cracked and mis~ing

ballscrew assembly slecves of the flap actuators. We are issuing this AD to detect and

correct cracked and missing sleeves, which could cause loss of the load-carrying ball

. b th fl I·· 11 d I f I flJTlNG'YMllOL beanngs on 0 actuators on one ap, resu tlOg m 'ap asymmetry an oss 0 contra 0

the airplane.

DATES: This AD is effective [INSERT DATE 15 DAYS AFTER DATE OF

PUBLICATION IN THE FEDERAL REGISTER]. ItoTI"GSYM90L

The Director of the Federal Register approved the incorporation by reference of

certain publications listed in the AD as of[lNSERT DATE 15 DA YS AFTER DATE OF\'l'E

PUBLICATION IN THE FEDERAL REG1STER].

We must receive comments on this AD by [INSERT DATE 45 DAYS AFTER

DATE OF PUBLICA nON IN THE FEDERAL REGISTER].

ADDRESSES: You may send comments by any of the following methods:
Federal Aviation Administration

DEPARTMENT OF TRA;'1SPORTATION

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14CFR Part 39 k4J' -iU.

IDocket No. FAA-2010-++++j Directorate Identifier 2010-NM-034-ADj Amcndme ~~~

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39-**; AD **1

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ACTION: Final rule; reqi)est tor comments.

AGENCY: Federal Aviation Administration (FAA), DOT.

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SUi\fl\-tARY: We are adopting a new alrworthiness directive (AD) for certain Model 4 ~~::f 'r,~-ur,

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airplanes. This AD requires a general visual inspection of the ballscrew assembly ofth cp !J 13~l'-1t.

flap actuator for cracked and missing]:lallscrew assembly sleeves, repetitive IU'" .'"

non-destructive liquid penetrant inspections of each assembly sleeve of the flap actuato 1~'11·.'~#

for cracks, and replacement or modification of the flap actuator if necessary. This AD ll-'lli

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results from reports of cracked and missing bal1screw assembly sleeves of the flap .' - 'YU

actuators. We are issuing this AD to detect and correct cracked and missing sleeves, ~

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which could cause loss of the load-carrying ball bearings on both actuators on one flap'D IS/to

resulting in flap aSymmetry and loss of control of the airplane. I"ouw';(' .-G:1 _

:~:~~A~::~~S;::;::~:::R:E:::~ DAYSAFTER DATEOFF

The Director of the Federal Register approved the incorporation by reference 0 _nr..;.~

Ain','ortbiness Directives; Learjet Inc. Model 45 Airplanes

certain publications listed in the AD as of [INSERT DATE 15 DAYS AFTER DATE ( p'T~:::-'-"",--

PUBLICATIONL'ITHE FEDERALREGISTER].

We must receive comments on this AD by [INSERT DATE 45 DAYS AFTER ~."~""",""3",U'O-=--

DATE OF PUBLICATIONINTHE FEDERALREGISTER].

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

FAA Form 1360-14.1 (6--S9) OFFICIAL FilE COPY