Pinnacle Airlines/Northwest Airlink Flight 3701Thursday October 14, 2004
On a night repositioning flight, while en route, the stick shaker activated several times before the plane entered a aerodynamic stall. Almost simultaneously both engines stopped. The crew declared an emergency but the plane did not make the airport, crashed and broke up. PC: The pilots' unprofessional behavior, deviation from standard operating procedures, and poor airmanship, which resulted in an in-flight emergency from which they were unable to recover, in part because of the pilots' inadequate training The pilots' failure to prepare for an emergency landing in a timely manner, including communicating with air traffic controllers immediately after the emergency about the loss of both engines and the availability of landing sites and the pilots' failure to achieve and maintain the target airspeed in the double engine failure checklist, which caused the engine cores to stop rotating and resulted in the core lock engine condition. Contributing to this accident was the engine core lock condition, which prevented at least one engine from being restarted, and the airplane flight manuals that did not communicate to pilots the importance of maintaining a minimum airspeed to keep the engine cores rotating.