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Thu, Apr 02, 2009

AD: McDonnell Douglas

AD NUMBER: 2009-07-07
MANUFACTURER: McDonnell Douglas
SUBJECT: Airworthiness Directive 2009-07-07
SUMMARY: We are adopting a new airworthiness directive (AD) for certain McDonnell Douglas Model 717-200 airplanes. This AD requires modifying the wire installation of the auxiliary hydraulic pump in the right wheel well of the main landing gear (MLG). This AD results from fuel system reviews conducted by the manufacturer. We are issuing this AD to prevent a tire burst when the MLG is in the retracted position from causing damage to the wire assembly of the auxiliary hydraulic pump and subsequent electrical arcing, creating the potential of an ignition source to the center wing tank, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.

FMI: www.faa.gov/regulations_policies/airworthiness_directives/

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