NTSB Identification: FTW92FA068.
The docket is stored on NTSB microfiche number 46653.
Accident occurred Monday, February 10, 1992 in DARROUZETT, TX
Probable Cause Approval Date: 06/30/1993
Aircraft: CESSNA 210G, registration: N5896F
Injuries: 2 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.

DURING A NIGHT IFR FLIGHT THE INSTRUMENT RATED PILOT HAD BEEN CLEARED BY AIR TRAFFIC CONTROL TO DESCEND FROM A CRUISE ALTITUDE OF EIGHT THOUSAND FEET TO SIX THOUSAND FEET. THE CLEARANCE WAS ACKNOWLEDGED. SEVERAL MINUTES LATER CONTACT WAS LOST. THE AIRPLANE DESCENDED AT A HIGH RATE OF SPEED AT A DIRECTION APPROXIMATELY 127 DEGREES TO THE RIGHT OF THE ASSIGNED HEADING AND IMPACTED INTO A WET CULTIVATED FARM FIELD. EXAMINATION OF THE AIRPLANE'S VACUUM PUMP REVEALED WEAR ON THE VANES AND ROTOR. METALLURGICAL EXAMINATION OF THE VACUUM PUMP COULD NOT SUBSTANTIATE PRE-IMPACT FAILURE.

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

THE PILOT'S FAILURE TO MAINTAIN AIRCRAFT CONTROL FOR UNDETERMINED REASONS. A FACTOR WAS THE DARK NIGHT.

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