WASHINGTON, Aug. 7 (TNSFR) -- The U.S. Department of Transportation Federal Aviation Administration is proposing a rule change to address a fire hazard on several models of Bombardier's Challenger aircraft. The agency's proposal would require operators of CL-600 jets to update their maintenance programs to prevent a potential fire in the auxiliary power unit (APU) bay.

The proposal stems from a past incident where a Challenger airplane's crew landed and ran the APU fo . . .

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