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  • MCDONNELL-DOUGLAS SAFETY

  • Mc Donnell Douglas MD83 Failure of Stabilizer trim System

  • Insufficient lubrication led to excessive wear and to failure of the jackscrew assembly in the McDonnell Douglas MD-83’s horizontal-stabilizer-trim system. The failure caused the horizontal stabilizer to jam in a position beyond normal limits and the aircraft to enter a nose-down pitch attitude from which recovery was not possible.
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