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Airworthiness Directives; Bombardier, Inc. Model CL-600-2BI9 (Regional Jet Scrie IfnJ}A.~

Federal Aviation Administration

14910-1

[Docket No. FAA-2010-*****; Directorate Identifier 2010-NM-002-AD]

100 & 440) Alrplanes

14CFR ParI 39

AGENCY: Federal Aviation Administration ~AA.),DOT.

ACTION: Notice of proposed rulemaking (NPRM). NJE:i~

SUMMARY: We propose to adopt a new airwbrthiness directive (AD) for the product ,,",TE I

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listed above that would supersede an existing AiD. This proposed AD results fro111 "'OUT1NG5Y,"6OI.

DEPARTMENT OF TRANSPORTATION

mandatory continuing airworthiness informatiop (MeAL) originated by 3n aviation

authority of another country to identify and correct an unsafe condition on an aviation

product. The MeAl describes the unsafe cOl1di~ionas:

There has been numerous reported ~ai!ures of the Regional Jet

engine TCGB PINs: 2100140-003,2100140-005 & 2100140-007.

Some of these failures have resulte~m in-flIght engme shutdowns.

Post incident investigations revealed that excessive wear within the

engine TCGB could alter the riggjn~ position or cause the throttle

to jam. With the rigging position altered, movement of the throttle

lever towards the idle position can rbsult in throttle moving too

close to the fuel shut-off position, w:b1chpotentially, can cause the

engine to flame out.

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

described in the MeAl.

'FAA Form 1360-14.1 (6-89) OFFICIAL FILE COPY

• U.S.GPO: '9!KHJ- iee·o, 2120' 01
149-' 0-1 J-PI

DEPARTMENT OF TRANSPOH,TATI0N

Federal A~'iatiOll AdrninistraiiOIl

t4 CFRl'ad 39

ll)ockct No. FAA-2(J1 O-****"'j Directorate tdClltiJiCI· 201 O-NM-llf)2-A 1>1

H.l N 2120-AA64

AinvorthillCSS lJirccl'ivcs; DOll1banli~r,Inc. Model CL-GOO-211 J 9 (R~gi()I1i11.Id Ser·ic.~

IO() & 440) j\irvlHIIl:S

AGENCY: Federal AViation Administratiol1 (FAA), DOT.

ACTION: Notice or proposed rulcmnking (NPRM).

SUMMAR Y: We propose Loadopt <lnew airwortJllllcsS directiyc (AD) nolI' !Ill: products

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list'cd above that would supcr.<>cde 311existing A1), This proposed AD result:; Ij'onl

mandatory continuing airworthiness information (MeAl) originated by an "vhllion

auLhority of <Inother cOllnl ry to idt.:ntify and correct an unsafe condition 011:m :1viatiOIl

product. The MCAI describes rhe- ul1sHfc condition as:

There bas bcen 1ll11)1erO\lS reponed failurcs orthc Regional Jel

engIne TCGB l'/Ns: 2100140-003, 2100140-005 & 21 00 [40-00-1,

Some of' thc!ie filllul"cS havl; reslIlt(;d ill i11-night cngi ne sh llt(i( 1\\'IIS,

Post illcid~lIt investigalil1l1s rCvclIl\.:d thaL Glcessiv!:.' wear willlili [h'..:

[;11g1l1CTCGB could alter the [-iggillg posil'i,)t1 or calise thc Lilrottle 10

jam. WiLh the ['igging position altered, 1l10vtll1ellL l1fthe throttle

lev'..:r tow'li·ds the: idle posiLion call resulL inl!hrOtllc moving [l.ll) cll)se

to the fuel shut-orr posilion, which pntciltinlly. call cause th0 ('ngil1~

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1'111:prupos('d AD wuuld n..:qt1ir'..:,[clions tllaL arc illlclHkJ to addn:ss !h•..' tJlIs,d'-: \"I'lidill"ll

described illlhc MeAl.

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