[4910-13-P]

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ACTION: Final rule; request for comments.

(DOT).

SUIVIl\tIARY:We are adopting a new airworthiness directive (AD) for the products lis

Airworthiness Directives; Bombardier, Inc. Model CL-600-2BI9 (Regional Jet Serie 1;;:~ViBO(;

100 & 440) Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of Transportation

RlN 2120-AA64

DEPARTMENT OF TR~SPORTATION

l03l

{Docket No. FAA-2010-*****; Directorate Identifier 2010-NM-202-AD;

Amendment 39!*~*trfb2010-*1.~ - 02-

14 CFR Part 39

Federal Aviation Administration

above. This AD results from mandatory continuing airworthiness information (MeAl)

originated by an aviation authority of another country to identify and correct an unsafe ,HE

condition on an aviation product. The MeAl describes the unsafe condition as: UTlNGSYMlIOL

Seven cases of on~ground hydraulic accumulator screw cap/end cap failure hav

been experienced on CL-600-2B19 aeroplanes, resulting in the loss of the

associated hydraulic system and high-energy impact damage to adjacent system

and structure. * * *

* * * * * * *

A detailed analysis of the calculated line of trajectory ofa failed screw cap/end

cap for each of the accumulators has been conducted, resulting in the

identification of several areas where systems and/or structural components coul

potentially be damaged. Although all of the failures to date have occurred on th

ground, an in-flight failure affecting such components could potentially have an

adverse effect on the controllability of the aeroplane. •:mALSIS",

* * * * * * *

O"TE
[4910-13-P)

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Pal139

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ANE-171

[Docket No. FAA~2010-*****; Directorate Identifier 2010-NM~202-AD~

Amendment 39_HH*; AD 2010-**-**]

R1N 2120-AA64 AN&171

Airworthiness Directives; Bombardier, Inc. Model CIr600-2B19 (Regional Jet Series

100 & 440) Airplanes

AGENCY: Federal Aviation Administration (FAA)! Department of Transportation

(DOT).

ACTION: Final rule; request for comments.

AN£...J70

SUMMARY: We are adopting a new airworthiness directive (AD) for the products listed ,,,,,,,

A

above. This AD results from mandatory continuing airworthiness infonnation (MeAl)

originated by an aviation authority of another country to identify and correct an unsafe

oondition on an a.viation product. The MeAl describes the lUlsafe condition as:

Seven cases of on-ground hydraulic accumulator screw cap/cnd cap failme have

been experienced on CL~600-2B19 aeroplanes, resulting in the loss of the

associated hydraulic system and high·energy impact damage to adjacent systems

and structure, •. ,. '"

,,,mAC''''''

• • • • • • •

A detailed analysis of the calculated line of trajectory of a failed screw cap/end

cap for ea.ch of the accumulators has been conducted, resulting in 1.he

identification of several areas where systems andlor structural components could

potentially be damaged. Although all of the failures to date have occurred on the

ground, an in-flight failure affecting such components could potentially have an

adverse effect on the controlJability of the aeroplane .

• • • • • • •
RIN 2120-AA64

Federal Avintion Administration

14 CFR Part 39

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• • • • • •

A detailed analysis of the calculated line of trajectory of a failed screw cap/end

cap for each of the accumulators has been conducted, resulting In the

identification of several areas where systems and/or structuralcomponcnts could

potentially be damaged. Although all orthe failures to date have occurred on the

ground, an in-flight failure affecting such components could potentially have an

adverse effect on the controllability of the aeroplane .

condition on an <lviation product. The MeAl describes the llnS,lfe condition as:

Seven cases OfO~-grOUnd hydraulic accumulator screw cap/end C'-1p J~lilure have

been experiencedlon CL-600-2B 19 aeroplanes, resulling in the [ass of the

associated hydraulic system and high~cnergy impact damage to adjacent systems

and structure. * *i*

originated by an aviation authority of another country to identify and correct 3n unsafe

above. This AD results from mandatory continuing airworthiness information (MeAl)

14910-13-PI

ACTION: Final rule; request for comments.

AGENCY: Federal Aviation Administration (FAA), Department ofTranspor!mion

100 & 440) Airplanes

AinvorthinC5S Directives; Bombardier, Inc. Model CL-600-2B 19 (Regional Jet Series

DEPARTl'vfENT OF TRANSPORTATION

IDocket No. F AA-201 0_*****; DircclOI'"atc Identifier 2010-NM-202-AO;

(DO'I),

SllMMA RY: We are adopting a new airworthiness directive (AD) for the products listed

• • • • • • •