On June 25, 1984, a Champion 7KCAB (registration N8888N) was involved in an aviation accident near Egg Harbor Town, NJ. Investigators recorded the probable cause as: The pilot's inability to maintain control due to jammed flight controls, which led to an impact with water. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
The aircraft pitched nose down at low altitude, causing the pilot to lose control. The plane crashed into deep water and was later recovered from underwater.
What happened
During the flight, the aircraft experienced a sudden and uncommanded pitch-down attitude while operating at an altitude between 350 and 400 feet above ground level. At this time, the indicated airspeed was approximately 85 knots. The pilot attempted to recover control of the airplane; however, the flight controls were found to be jammed, preventing any effective response.
The aircraft impacted the surface of a body of water at an approximate nose-down angle of 45 degrees. The crash site was located in water with a depth of about 30 feet. Following the accident, recovery operations involved towing the wreckage underwater for a distance of approximately five miles to retrieve the remains. This recovery process resulted in significant additional damage to the aircraft structure beyond that caused by the initial impact.
The investigation
The examination of the incident focused on the mechanical state of the flight controls and the circumstances surrounding the loss of control. Investigators noted the jamming of the controls as a critical factor during the event. The underwater recovery efforts further compromised the airframe, complicating the assessment of pre-impact damage.
Probable cause
The pilot's inability to maintain control due to jammed flight controls, which led to an impact with water.