NTSB Identification: FTW83LA074
Nonscheduled 14 CFR Part 135: Air Taxi & Commuter
Accident occurred Friday, December 31, 1982 in HOUSTON, TX
Probable Cause Approval Date: 12/31/1983
Aircraft: CESSNA 210N, registration: N6610Y
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.

ENROUTE IN IMC THE ACFT HAD A COMPLETE ELECTRICAL FAILURE. THE PLT DESCENDED TO VFR CONDITIONS & ELECTED TO LAND AT WEISER ARPT. THE PLT LOWERED THE GEAR ELECTRICALLY BUT DID NOT RECEIVE A GREEN DOWN & LOCKED INDICATION. HE THEN PUMPED THE EMERGENCY EXTENSION HANDLE BUT STILL DID NOT GET A GREEN DOWN & LOCKED INDICATION. THE MAIN GEAR RETRACTED DURING THE LANDING. HAD THE PLT CONTINUED TO MANUALLY PUMP HE WOULD HAVE LOCKED THE GEAR DOWN. THE ALTERNATOR FAN BLADE HAD SEPARATED & EXITED THROUGH THE ENG COWLING. THE RESULTANT VIBRATION CAUSED THE ALTERNATOR GROUND WIRE TO SEPARATE FROM ITS ATTACH POINT CAUSING THE TOTAL ELECTRICAL FAILURE.

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

EMERGENCY PROCEDURE..PERFORMED..PILOT IN COMMAND

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

GEAR DOWN AND LOCKED..NOT ATTAINED..PILOT IN COMMAND


Contributing Factors

ELECTRICAL SYSTEM,ALTERNATOR..FAILURE,PARTIAL


Contributing Factors

ELECTRICAL SYSTEM,ALTERNATOR..SEPARATION


Contributing Factors

ELECTRICAL SYSTEM,ELECTRIC WIRING..VIBRATION


Contributing Factors

ELECTRICAL SYSTEM,ELECTRIC WIRING..DISCONNECTED


Contributing Factors

ELECTRICAL SYSTEM..FAILURE,TOTAL

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