Ercoupe 415-C N94339 accident near Arcaida, Florida

Probable cause

The pilot's failure to maintain a proper climb rate after takeoff.

NTSB analysis

A witness observed the airplane depart toward the west from the 1,200-foot-long grass strip. During the takeoff the witness observed the airplane encounter what he believed to be a downdraft, causing it to lose altitude. The airplane seemed to reestablish the climb when it impacted an oak tree that was located about 50 feet past and 20 feet left of the runway. The airplane impacted several trees before impacting the ground inverted. The wreckage examination revealed no abnormalities or discrepancies that would have prevented the airplane and its systems from normal flight operations. The nearest weather reporting station was located 23 miles southwest from the accident location. The recorded temperature during the time of the accident was 32 degrees Celsius (90 degrees Fahrenheit) and the wind was reported from 250 degrees at 13 knots. The autopsy report noted evidence of moderate to severe coronary artery disease and a prior heart attack. The toxicology results were consistent with the recent use of an anti-acid medication, available over the counter. The medication was unlikely to have adversely affected the pilot’s performance. Postmortem toxicology could not determine whether the pilot’s heart disease or the symptoms for which he was taking medication were related to the accident.

Text from the NTSB. Open the NTSB docket for MIA08LA164 for the full record.