Accident Kolb Twinstar Mark-III N860RB,
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ASN Wikibase Occurrence # 43098
 
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Date:Tuesday 12 March 1991
Time:17:50
Type:Kolb Twinstar Mark-III
Owner/operator:private
Registration: N860RB
MSN: 1
Engine model:ROTAX UNKNOWN
Fatalities:Fatalities: 1 / Occupants: 1
Aircraft damage: Destroyed
Category:Accident
Location:Bronson, FL -   United States of America
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
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. 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.

Sources:

NTSB: http://www.ntsb.gov/ntsb/brief.asp?ev_id=20001212X16655

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]

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