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Federal Aviation Administration

RIN 2120-AA64

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700,701, & 702) Airplanes, Model CL-600-2DI5 (Regional Jet Series 705) Airplanes, ~VJ).

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

DEPARTMENT OF TRANSPORTATION

Airworthiness Directives; Bombardier, Inc. Model CL-600-2ClO (Regional Jet Seri

(Docket No. FAA-2009-1033; Directorate Identifier 2009-NM-I04-AD; Ameudme

Iln?2b i2-C6

39-*'f~*; AD 2010-**-**} s

14 CFR Part 39

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

(DOT).

ACTION: Final rule.

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SUMMARY: We are superseding an existing airworthiness directive (AD) for the INI'IIACS"'"G

products listed above. This AD results from mandatory continuing airworthiness

information (MeAl) originated by an aviation authority of another country to identify

and COITectan unsafe condition on an aviation product. The MeAl describes the unsaf INlTIAI..'l."G

IlATE

condition as:

Following in-flight test deployments on CL-600-2B 19 aircraft, several

Air-DJiven generators (ADGs) failed to come on-line. Investigation

revealed that, as a result of a wiring anomaly that had nOl been detected

during ADG manufacture, a short circuit was possible between certain

internal wires and their metallic over-braided shields, which could result

in the ADG not providing power when deployed. * '"'"

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The unsafe condition is failure of the ADG, which could lead to loss of several funerio I~

essential for safe flight. We are issuing this AD to require actions to correct the unsafe
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OEI)ARTI\'II?NT OF THANSPORTATION

Federal Aviation AdOlillistJ-alioll

14 CFR Part 39

jDockct No. EAA-200,9-1033; Directorate ldentine.· 2009-N]\1-1 04·AD; Amelldment

RfN 2120-AA64

Ainvol-tbiucss Oircctjvcs; Bombardier, Inc. Model CL-600-2Cl 0 (Regional Jet Scrie.c;

700, 701, & 702) Airplanes, Model CL-600-2D15 (Regional Jet Series 705) Airplanes,

<lndModel CL-600-2D24 (Regional Jet Series 900) Airplanes

ACF.NCY: Federnl Aviation Administration (FAA), Department of Transportation

(DOT).

ACTION: Final rule.

SUNfMARV: We arc superseding an eXlsting airworthiness directive (AD) for the

products listed above. This .AD resulLc; from mandatory continuing airw0I1hincss

informlltion (MeAl) originated by an avi::..tion aulhority of another country to identify

and c.oncet an unsale condition on all aviation product. The MeAl describes the unsafe

condilioll as:

Following in-llight test deploymenls on ClAjOO-2B 19 aircraft, several

Air-Oriven gCllefHtors (ADGs) failed to COI1l~oll-lin<:_ investigation

revealed that, as a result ofa wiring anolllaly that had not been detected

c1ming ADG ll1i:lnUfacllll'c, a ~hort cirCUli was possible belween ccrlain

inlCnllll wires ,Hlldtheir metallic over·braidcd shields, wl1ich could rCSllll

ill the AD(t 110t providing jmwer when deployed. '" *' *

The ullsafo condition is failure ofthe ADG, which could leud to loss of several functions

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