NTSB Identification: LAX96LA225.
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Accident occurred Wednesday, June 12, 1996 in ANGELS CAMP, CA
Probable Cause Approval Date: 01/17/1997
Aircraft: Cessna 150H, registration: N22474
Injuries: 1 Uninjured.

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

The right-hand float of the rented float plane dug into the water and the aircraft nosed over on the 45th landing since the float was last pumped out. The float had required 330 strokes of the bilge pump to empty it. Postaccident inspection of the right float revealed two holes in the float that apparently were made the previous day. The pilot, who had received his float plane rating 10 days prior, reported that this was the only float plane he had ever flown, and that it was routine during his training to pump this float 80 strokes during preflight. When the float required 330 strokes on the morning of the accident, he thought this unusual, but decided to continue flying it after considering the normal number of pumps required, the number of landings the previous day, and the fact that the aircraft had been parked on the water overnight.

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

The attempt by the pilot to operate the aircraft with a float known to be leaking. A factor was the pilot's lack of experience in the operation of float equipped aircraft.

Full narrative available

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