NTSB Identification: NYC92FIG01.
The docket is stored on NTSB microfiche number 52238.
Accident occurred Sunday, June 28, 1992 in WILLIAMSPORT, MD
Probable Cause Approval Date: 12/09/1993
Aircraft: TIERRA II, registration: N531PJ
Injuries: 1 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.

THE PILOT PREFLIGHTED THE AMATEUR BUILT AIRPLANE AND THEN TAXIED IT FOR ABOUT 10 MIN BEFORE TAKING OFF. ABOUT 15 MIN LATER, WITNESSES REPORTED THEY HEARD THE SOUND OF A ROUGH RUNNING ENGINE BEFORE THE SOUND OF A CRASH. THERE WERE NO WITNESSES WHO REPORTED THEY SAW THE CRASH. THE AIRPLANE COLLIDED WITH THE GROUND IN A NOSE DOWN ATTITUDE. EXAMINATION OF THE AIRPLANE DID NOT DISCLOSE EVIDENCE OF MECHANICAL MALFUNCTION. THE PILOT WAS NOT CERTIFICATED, BUT HAD ACQUIRED AN UNDETERMINED AMOUNT OF FLIGHT TIME IN ULTRALIGHTS. TOXICOLOGICAL TESTS REVEALED A URINE ALCOHOL AND BLOOD ALCOHOL LEVEL, RESPECTIVELY, OF 0.09% AND 0.06%.

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

THE PILOT'S ALCOHOLIC IMPAIRMENT OF EFFICIENCY AND JUDGEMENT RESULTING IN A LOSS OF CONTROL OF THE AIRPLANE DURING A FORCED LANDING FOLLOWING A POWER LOSS FOR AN UNDETERMINED REASON.

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