NTSB Identification: LAX91LA053.
The docket is stored on NTSB microfiche number 43998.
Accident occurred Saturday, December 22, 1990 in DOUGLAS, AZ
Probable Cause Approval Date: 08/06/1993
Aircraft: CESSNA T210N, registration: XBBCR
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.

THE ACCIDENT SITE WAS LOCATED ON SEMI-LEVEL, TYPICAL SONORA DESERT TERRAIN. THE AIRPLANE HAD IMPACTED THE GROUND AT A RIGHT ANGLE 90 DEG TO THE SURFACE. THE PROPELLER INDICATED POWER AND ROTATION AT IMPACT. THE COUNTY SHERIFF'S INVESTIGATORES DETERMINED THE TWO INDIVIDUALS WERE LAST SEEN LEAVING A LOCAL DOUGLAS BOWLING ALLEY AT APRX MIDNIGHT, INTOXICATED, GOING TO AND STAYING AT A BAR UNTIL 0100. THE PILOT'S MUSCLE ETHANOL CONCENTRATION WAS 210 MG/DL. THE AIRPLANE'S VACUUM PUMP HAD BEEN INOPERATIVE FOR THE LAST 2 MONTHS.

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

AN INFLIGHT LOSS OF CONTROL OF THE AIRPLANE DUE TO THE PILOT'S PHYSICAL IMPAIRMENT FROM THE CONSUMPTION OF ALCOHOL. A FACTOR WHICH CONTRIBUTED TO THE ACCIDENT WAS AN INOPERATIVE VACUUM SYSTEM.

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