Accident Kolb Twinstar Mark-III N860RB, Tuesday 12 March 1991
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Date:Tuesday 12 March 1991
Time:18:50 LT
Type:Kolb Twinstar Mark-III
Owner/operator:Robert E. Bartholomew
Registration: N860RB
MSN: 1
Engine model:ROTAX UNKNOWN
Fatalities:Fatalities: 1 / Occupants: 1
Other fatalities:0
Aircraft damage: Destroyed
Category:Accident
Location:Bronson, FL -   United States of America
Phase: Approach
Nature:Private
Departure airport:Williston, FL (X60)
Destination airport:
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
WITNESSES STATED THAT THE PILOT INITIATED THE FLIGHT KNOWING THAT THE AIRSPEED INDICATOR WAS INOPERATIVE. THEY OBSERVED THE AIRPLANE ON FINAL APPROACH WHEN IT ENTERED A STEEP LEFT 360-DEGREE TURN. THEY STATED THE LEFT WING STALLED AND THE AIRPLANE PITCHED NOSE DOWN AND CRASHED. EXAMINATION OF THE ENGINE, AIRPLANE AND FLIGHT CONTROLS REVEALED NO PREIMPACT FAILURES.

Probable Cause: PILOT-IN-COMMAND'S DECISION TO INITIATE A FLIGHT WITH KNOWN DEFICIENCIES IN HIS EQUIPMENT IN THAT HIS AIRSPEED INDICATOR WAS INOPERATIVE. HE THEN FAILED TO MAINTAIN AIRSPEED IN A TURN ON FINAL APPROACH, STALLED, AND CRASHED.

Accident investigation:
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Investigating agency: NTSB
Report number: MIA91LA096
Status: Investigation completed
Duration: 1 year and 10 months
Download report: Final report

Sources:

NTSB MIA91LA096

Location

Revision history:

Date/timeContributorUpdates
24-Oct-2008 10:30 ASN archive Added
21-Dec-2016 19:24 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
21-Apr-2024 07:53 ASN Update Bot Updated [Time, Operator, Other fatalities, Phase, Source, Narrative, Category, Accident report]

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