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NTSB Report
April 26, 1990 · Hiller UH-12B · N5306V
Sanford, FL
Overview
Report Status
Probable Cause
Event Type
Accident
Date
April 26, 1990
Injury Outcomes
No injuries (1 uninjured)
Location
Sanford, FL
Aircraft
Hiller UH-12B
Tail Number
N5306V
Injuries
None
Aircraft Damage
Substantial
NTSB Number
MIA90LA111
THE STUDENT PLT WAS ON A SOLO FLT, PRACTICING TRAFFIC PATTERN APPROACHES. HE STATED THAT AFTER TAKING OFF FROM HIS 4TH APCH, THE ENG LOST POWER & THE HELICOPTER YAWED TO THE LEFT. HE INITIATED AN AUTOROTATION, BUT THE HELICOPTER STRUCK THE GROUND & ROLLED OVER. AN OPERATIONAL CHECK OF THE ENG REVEALED NO REASON FOR THE RPRTD LOSS OF POWER.
NTSB Probable Cause
LOSS OF ENGINE POWER FOR AN UNKNOWN REASON.
Full Narrative
THE STUDENT PLT WAS ON A SOLO FLT, PRACTICING TRAFFIC PATTERN APPROACHES. HE STATED THAT AFTER TAKING OFF FROM HIS 4TH APCH, THE ENG LOST POWER & THE HELICOPTER YAWED TO THE LEFT. HE INITIATED AN AUTOROTATION, BUT THE HELICOPTER STRUCK THE GROUND & ROLLED OVER. AN OPERATIONAL CHECK OF THE ENG REVEALED NO REASON FOR THE RPRTD LOSS OF POWER.
Flight
Event TypeAccident
Event Time09:34 EDT
Nearest AirportSanford Rgnl (0nm N)
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftHiller UH-12B
Tail NumberN5306V
Aircraft CategoryHeli
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsFranklin · 6V-335-B · Reciprocating · 210
Seats3
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 38 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind120° @ 8 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Observation Time13:34
Weather SourceWFAC