DEPARTMENT OF TRANSPORTA nON

Federal Aviation Administration

[4910-13-P]

N<1JRRENCH'

ROlm~G SYMBGl

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INITrAL<I'H;

14 CFR Part 39

[Docket No. FAA-2009-0703; Directorate Identilier 2009-NM-093-AD]

RIN 2120-AA64

Airworthiness Directives; Bombardier, Inc. Model CL-600-2Cl 0 (Regional Jet Series

700,70] & 702) Airplanes, Model CL-600-2DI5 (Regional Jet Series 705) Airplanes,

and Model CL-600-2D24 (Regional Jet Series 900) Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

[.~

DATE

I Z-/o.jf 0

ROU11"G SYMBOL

- lie\--

ACTlON: Supplemental notice of proposed rulemaking (NPRM); reopening of corrune -- L00

~ ITIAI.s'SIG

period.

SUMMARY: We are revising an earlier NPRM for the products listed above. This actio

wUTI,,(; nHl()L

revises the earlier NPRM by expanding the scope. This proposed AD results from

mandatory continuing ainvorrhiness information (MCA1) originated by an aviation

authority of another country to identify ancl correct an wlsafe condition on an aviation

product. The MCAI describes the unsare condition as:

There have been four reports of loose or detached main landing gear

torque link apex pin Jocking plate and the locking plate retainer bolt. This

condLtion could restllt in torque link apex pin disengagement, heavy

vibration during landing, damage to main landing gear components and

subsequent main landing gear collapse.

INI'l'IAlS'StG

"()UTLNG WMIlQL

INI'IIAlSi5IG

DATE

"OUT'''''' SYMBOl.

* * * * *

OI,fI'INC SYMIlOI.

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

described in the MeAl.
14910-J3.Pj <,n"\lR"i:~r,',

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ANE·171

DEPARTMENT OF'TRANSPORTATION

Federal Aviation Administration

'd"

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14 CFR Part 39 LGB-AEG

IDocket No. FAA-2009-0703j Directorate Identifier 2009-NM-093·AD)

RIN 2120-AA64

ANE-171

AGENCY; Federal Aviation Administration (FAA), DOT.

ANE-171 7

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ACTION: Supplemental notice of proposed rulemaking (NPRM): reopening of comment IH'" /' '-\/'

/( Z- fe-'

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period. ANE-170

Ainvorthincss Directives; Bombardier, Inc. Model CL-600-2C10 (Regional Jet Series

700, 701 & 702) Airplanes, Model CL~600·2D 15 (Regional Jet Series 705) Airplanes.

and Model CL·600-2D24 (Regional Jet Series 900) Airplanes

revises the earlier NPRM by expanding the scope. This proposed AD results from

SUMMARY: We arc revising an earlier NPRM for the products listed above. This aeti

mandatory continuing airv..wthincss information (MeAl) originated by an aviation

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

product. The MCAI describes the unsafe condition as; ''')l!1J~G''·MI)(jL.

There have been four reports of loose or detached main landing gear

torque link apex pin locking plate and the locking plate retainer bolt. This

condition could result in torque link apex pin disengagement. heavy

vibration during landing, damage to main landing gear components and

subsequent main landing gear collapse.

"""

"u'" '''' >I'.''''')!.

• • • • • * •

The proposed AD \vould require actions that are lintended to address the unsafe condition