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NTSB Report
July 24, 1991 · Questair Venture · N7PZ
San Marcos, TX
Overview
Report Status
Probable Cause
Event Type
Accident
Date
July 24, 1991
Injury Outcomes
1 injury (1 fatality)
Location
San Marcos, TX
Aircraft
Questair Venture
Tail Number
N7PZ
Operator
Frank Brantley Scott
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
FTW91DRG06
THE PRIVATE PILOT WAS PERFORMING A MAINTENANCE TEST FLIGHT IN THE TRAFFIC PATTERN OF HIS HOME BASE AIRPORT IN HIS EXPERIMENTAL AIRPLANE. AFTER DEPARTING FROM THE RUNWAY, THE AIRPLANE WAS OBSERVED IN A LEFT TURN ON BASE TO FINAL APPROACH. EYEWITNESSES STATED THAT THE AIRPLANE CONTINUED TO BANK LEFT AND TIGHTENED THE TURN BEFORE IT NOSED OVER OUT OF CONTROL TO IMPACT THE GROUND. SEVERAL WITNESSES MONITORED AN EXEMPLAR FLIGHT DURING THE INVESTIGATION AND NOTED THAT THE ACCIDENT AIRPLANE APPEARED TO BE SLOWER IN THE PATTERN COMPARED TO THE DEMONSTRATION AIRPLANE. NO MECHANICAL ANOMALIES WERE FOUND TO ANY AIRPLANE SYSTEM DURING THE INVESTIGATION BY THE FAA COORDINATOR.
NTSB Probable Cause
THE PILOT'S FAILURE TO MAINTAIN FLYING AIRSPEED RESULTING IN A STALL.
Full Narrative
THE PRIVATE PILOT WAS PERFORMING A MAINTENANCE TEST FLIGHT IN THE TRAFFIC PATTERN OF HIS HOME BASE AIRPORT IN HIS EXPERIMENTAL AIRPLANE. AFTER DEPARTING FROM THE RUNWAY, THE AIRPLANE WAS OBSERVED IN A LEFT TURN ON BASE TO FINAL APPROACH. EYEWITNESSES STATED THAT THE AIRPLANE CONTINUED TO BANK LEFT AND TIGHTENED THE TURN BEFORE IT NOSED OVER OUT OF CONTROL TO IMPACT THE GROUND. SEVERAL WITNESSES MONITORED AN EXEMPLAR FLIGHT DURING THE INVESTIGATION AND NOTED THAT THE ACCIDENT AIRPLANE APPEARED TO BE SLOWER IN THE PATTERN COMPARED TO THE DEMONSTRATION AIRPLANE. NO MECHANICAL ANOMALIES WERE FOUND TO ANY AIRPLANE SYSTEM DURING THE INVESTIGATION BY THE FAA COORDINATOR.
Flight
Event TypeAccident
Event Time10:25 CDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftQuestair Venture
Tail NumberN7PZ
Aircraft CategoryAir
DamageDestroyed
OperatorFrank Brantley Scott
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · IO-550-G1B · Reciprocating · 280
Seats2
People & Injuries
Injury Summary1 injury (1 fatality)
Fatal1
Serious0
Minor0
Uninjured0
Total1
Crew 1Age 62 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind210°
Visibility20 sm
CeilingNone
Altimeter0
Weather SourceWIT