Accident · 1991-04-20

NTSB case NYC91DNA02 · BELL 47-G3B1 · Part 137

What the record says

Event date: 1991-04-20
Event type: Accident
Highest injury level: Minor injury
Aircraft: BELL 47-G3B1 (N1166W)
Operating rule: Part 137
Operator: FIREFLY LEASING, INC. Operator named in NTSB report
Operated by (per NTSB report): FIREFLY LEASING, INC.

Probable cause

A FAILURE OF THE CLUTCH DURING TAKEOFF DUE TO IMPROPER MAINTENANCE PROCEDURES. FACTORS RELATED TO THE ACCIDENT WERE INSUFFICIENT ALTITUDE TO ESTABLISH AN AUTOROTATION.

Source: NTSB case NYC91DNA02

Flight crew

Flight-crew details for this event aren't in the NTSB database extract we hold (its coverage starts with 2008 events) — a gap in our data, not an absence of crew.

Facts as the NTSB records them — GroundCheck adds no judgement. Preliminary records may be revised as the investigation proceeds.

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