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Fri, Apr 08, 2005

AD: Bombardier

AD NUMBER: 2005-07-15
MANUFACTURER:
Bombardier
SUBJECT: Airworthiness Directive 2005-07-15
SUMMARY: The FAA is adopting a new airworthiness directive (AD) for certain Bombardier Model CL-600-2B19 (Regional Jet Series 100 and 440) airplanes. This AD requires modification of the Auxiliary power Unit (APU) cooling air exhaust.

This AD is prompted by reports of incomplete drainage of the APU enclosure. We are issuing this AD to prevent a negative pressure condition from developing in the APU enclosure when the APU is operating on the ground, which could create a potential fire hazard if flammable liquid leakage occurs inside the APU enclosure and cannot be drained overboard.

FMI: www.avantext.com/DailyADIndex.ASP?AD=20050715

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