What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) On April 15, 2008, at 1321 EDT, a Douglas DC-9, N600TR, flight 1555, operated by northwest airlines, during the climb out from syracuse airport experienced vibration in the control column. The crew engaged the autopilot and immediately the out of trim light illuminated and would not go out. The autopilot was disengaged and the aircraft was landed at Rochester airport. The aircraft taxied to the gate without incident. Fire and rescue responded. There were no injuries. The contract mechanic found that a cotter key was missing from the left elevator power control actuator. The mechanic removed and replaced the power control actuator. Operational check was satisfactory and aircraft returned to service. This incident is considered closed.
As the FAA filed it
(-23) ON APRIL 15, 2008, AT 1321 EDT, A DOUGLAS DC-9, N600TR, FLIGHT 1555, OPERATED BY NORTHWEST AIRLINES, DURING THE CLIMB OUT FROM SYRACUSE AIRPORT EXPERIENCED VIBRATION IN THE CONTROL COLUMN. THE CREW ENGAGED THE AUTOPILOT AND IMMEDIATELY THE OUT OF TRIM LIGHT ILLUMINATED AND WOULD NOT GO OUT. THE AUTOPILOT WAS DISENGAGED AND THE AIRCRAFT WAS LANDED AT ROCHESTER AIRPORT. THE AIRCRAFT TAXIED TO THE GATE WITHOUT INCIDENT. FIRE AND RESCUE RESPONDED. THERE WERE NO INJURIES. THE CONTRACT MECHANIC FOUND THAT A COTTER KEY WAS MISSING FROM THE LEFT ELEVATOR POWER CONTROL ACTUATOR. THE MECHANIC REMOVED AND REPLACED THE POWER CONTROL ACTUATOR. OPERATIONAL CHECK WAS SATISFACTORY AND AIRCRAFT RETURNED TO SERVICE. THIS INCIDENT IS CONSIDERED CLOSED.