NTSB Identification: ATL97LA066.
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Accident occurred Thursday, May 01, 1997 in RUSSELLVILLE, AL
Probable Cause Approval Date: 01/07/1998
Aircraft: Piper PA-22-180, registration: N5778Z
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.

Approximately 4 hours into the flight, while on a long descent to the destination airport, the pilot experienced a reduction in engine power. The power reduction continued over a period of eight minutes and resulted in a complete loss of engine power. Following the loss of power, the pilot's attempts to restore full engine power, which included the application of carburetor heat, failed. The pilot selected a nearby paved road for an emergency landing. During the landing roll out, the right wing collided with a road sign, and the airplane swerved into an adjacent ditch and nosed over. Examination of the airplane failed to disclose a mechanical problem. Fuel was recovered from the fuel system. During the functional test of the engine, the engine operated normally through all power ranges. A review of current weather information revealed that weather conditions were favorable for the formation of carburetor icing.

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

The loss of engine power for undetermined reasons. A factor was conditions were favorable for the formation of carburetor ice.

Full narrative available

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