### RlN 2120-AA64 InmAL.~'5'GlUTU~~ 

## :) OAr! 

## ICYI~llo
AlJUT'NG SY~lIO<. 

### 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 ofproposed rulemaking (NPRM). 

# NJE:i~ SUMMARY: We propose to adopt anew airwbrthiness directive (AD) forthe product ,,",TE

# I \0 17 , 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~ion as: There has been numerous reported ~ai!uresofthe Regional Jet engine TCGB 

### PINs: 2100140-003,2100140-005 & 

### 2100140-007. Some ofthese 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 tojam. With the rigging position altered, movement ofthe throttle lever towards the idle position can rbsult inthrottle moving 

### too close to the 

### fuel shut-off position, w:b1ch potentially, can cause the engine to flame out. I.:,<m~" $Y"SOl ,"m~""N"';UR~

DArE



### * 

## * * * 

## * * 

## * The proposed AD would require actions that are intended to address the unsafe conditio described inthe 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.lN 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 L1JAICC 

### """A,~~J."~'" J_1\.kM;"",,,,,, 

### ,'-~~_~i 

## ~::= .. "j.. "/ );..>:!: list'cd above that would supcr.<>cde311existing A1), This proposed AD result:; Ij'onl mandatory continuing airworthiness information (MeAl) originated byan "vhllion auLhority of <Inother cOllnlry to idt.:ntify and correct an unsafe condition 011:m :1 viatiOIl 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\.:dthaLGlcessiv!:.' wear willlili [h'..: [;11g1l1C TCGB could alter the [-iggillg posil'i,)t1 or calise thc Lilrottle 10 jam. WiLh the ['igging position altered, 1l10vtll1ellL l1fthe throttle lev'..:rtow'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~ \0 Ibm,.: (llll. ANI':-17.!



## ,,,,-,


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## • 

## • • ---_.- ,'" 1'111: prupos('d AD wuuld n..:qt1ir'..:,[clions tllaLarc illlclHkJ to addn:ss !h•.. ' tJlIs,d'-: \"I'lidill"ll described illlhc MeAl. "~-:--.,,,.~