NTSB Identification: CHI90FA239.
The docket is stored on NTSB microfiche number 42648.
Accident occurred Saturday, August 25, 1990 in CLARK LAKE, MI
Probable Cause Approval Date: 12/15/1992
Aircraft: CHAMPION 7GCAA, registration: N2521F
Injuries: 1 Fatal.
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.
WITNESSES OBSERVED THE AIRCRAFT IN LOW FLIGHT & AEROBATIC MANEUVERS. FOLLOWING WHAT WAS DESCRIBED AS A STEEP PULL-UP, THE AIRCRAFT WAS SEEN TO IMPACT WATER IN A STEEP DESCENT. SUBSEQUENT INSPECTION OF THE AIRFRAME & ENGINE REVEALED NOTHING WHICH WOULD HAVE AFFECTED NORMAL FLIGHT. TOXICOLOGY CHECKS SHOWED THE PILOT HAD A BLOOD/ALCOHOL LEVEL OF 260 MG/DL (0.26%) & A URINE/ALCOHOL LEVEL OF 183 MG/DL (0.183%).
The National Transportation Safety Board determines the probable cause(s) of this accident to be: POOR JUDGEMENT OF THE PILOT DUE TO CONSUMPTION OF ALCOHOL, AND HIS FAILURE TO MAINTAIN PROPER ALTITUDE AND CLEARANCE ABOVE WATER, WHILE PERFORMING AEROBATIC MANEUVERS.
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