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NTSB: Expedite Upgrades To Boeing 737 Rudder PCUs
Nearing the end of its 29-mo. investigation into the crash of USAir Flight 427 in September, 1994, the U.S. National Transportation Safety Board is urging the FAA to expedite upgrades to Boeing 737 rudder control units, and train pilots to cope with unexpected rudder reversals that can lead to a loss of control.