NTSB Identification: SEA96FA071.
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Accident occurred Wednesday, March 20, 1996 in RENTON, WA
Probable Cause Approval Date: 02/28/1997
Aircraft: Cessna U206E, registration: N1460M
Injuries: 1 Minor,1 Uninjured.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

The pilot became incapacitated in flight, requiring his non-pilot passenger to take the controls. The passenger contacted the air traffic control tower at Renton, Washington and requested assistance. A Renton tower controller, who was also a certificated flight instructor, then 'talked the passenger down' to a landing at Renton. The passenger landed the floatplane hard on the airport's paved runway, substantially damaging the aircraft. The pilot was pronounced dead at the scene. An FAA second-class medical certificate, dated November 21, 1994, was found in the pilot's personal effects at the scene. An autopsy attributed the pilot's death to 'severe arteriosclerotic cardiovascular disease' and classified the manner of his death as natural. The pilot indicated on his application for his medical certificate, dated November 18, 1994, that he had no history of heart or vascular trouble. However, medical records on file at two Seattle-area hospitals documented that the pilot had been admitted to those hospitals in 1991 with diagnoses of myocardial infarction and coronary artery disease, both disqualifying conditions for a second-class medical certificate per Federal Aviation Regulations.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

the pilot's initiation of a flight with a known disqualifying heart condition, and his subsequent inflight incapacitation from a heart attack. A factor relating to the accident was: the inability of the non-rated passenger (unqualified person) to attain a successful landing.

Full narrative available

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