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Fri, Aug 26, 2011

AD: Bombardier (Final Rule)

AD NUMBER: 2011-18-08

MANUFACTURER: Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) Airplanes 
SUBJECT: Airworthiness Directive 2011-18-08
ACTION: Final rule; request for comments

SUMMARY: This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:

There has been one reported case of an aft equipment bay fire occurring due to arcing of chafed integrated drive generator (IDG) power cables. Additionally, the hydraulic line support brackets located at the fuselage station (FS) 672 have been found broken in service on several aeroplanes. A broken hydraulic line support bracket at FS 672 could result in inadequate clearance between the IDG power cables and hydraulic lines, potentially resulting in chafing of the IDG power cables. Chafed IDG power cables can generate high energy arcing, which can result in an uncontrolled fire in the aft equipment bay.

DATES: This AD becomes effective September 9, 2011. Comments on this AD must be received by October 11, 2011

FMI: http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgAD.nsf/0/B64F98B41ED90FD9862578F700472CB4?OpenDocument

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