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MIA90LA111

1990-04-26 · SANFORD, Florida, United States · None · 1 aircraft · Status: Completed

Airport SFB

Current FAA registration · N5306V

Make / Model
HILLER UH-12B
Engine
FRANKLIN 6V4 SERIES (210 hp)
Seats / Engines
4 seats · 1 engine
ADS-B equipped
Yes — Mode-S A6B3AB

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

LOSS OF ENGINE POWER FOR AN UNKNOWN REASON.

Factual 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. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1990_MIA90LA111.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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