NTSB Identification: CHI93LA260.
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Accident occurred Sunday, July 18, 1993 in HILL CITY, KS
Probable Cause Approval Date: 08/17/1994
Aircraft: CHAMPION 7KCAB, registration: N11AT
Injuries: 2 Fatal.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

WITNESSES REPORTED THE ACCIDENT AIRPLANE MADE A LOW PASS FROM NORTH TO SOUTH ALONG THE RUNWAY, AND DROPPED THE BANNER IT WAS TOWING. THEY STATED THE PILOT ADDED POWER AND BEGAN A LEFT CLIMBING TURN. WITNESSES ESTIMATED THE AIRPLANE WAS BETWEEN 50 AND 150 FEET ABOVE THE GROUND WHEN THE ENGINE SPUTTERED AND QUIT. THE AIRPLANE ENTERED A STEEP LEFT TURN, AND PITCHED NOSE DOWN TO THE GROUND. WITNESSES STATED THE AIRPLANE HAD BEEN TOWING BANNERS OVERHEAD THROUGHOUT THE MORNING. THEY REPORTED THE ENGINE SEEMED TO BE CONSISTENTLY RUNNING ROUGH, COUGHING AND SPUTTERING. POSTACCIDENT EXAMINATION AND ENGINE RUNUP REVEALED NO EVIDENCE OF PREIMPACT MECHANICAL ANOMALY.

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

the loss of engine power for an undetermined reason and the pilot's decision to continue flying the airplane with known deficiencies. Factors in the accident are the lack of suitable terrain available for a forced landing, the airplane's low altitude, and the pilot's inadvertent stall of the airplane.

Full narrative available

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