Accident · 1990-01-30

NTSB case CHI90LA074 · MBB BK-117A-1 · Part 91

What the record says

Event date: 1990-01-30
Event type: Accident
Highest injury level: No injuries
Aircraft: MBB BK-117A-1 (N117M)
Operating rule: Part 91
Operator: Omni Flight Helicopters Inc Operator named in NTSB report
Operated by (per NTSB report): OMNI FLIGHT HELICOPTERS, INC.

Probable cause

THE PILOT-IN-COMMAND FAILED TO ENSURE THAT THE ENGINE COWLING LATCHES WERE PROPERLY SECURED PRIOR TO DEPARTING ON THE MAINTENANCE TEST FLIGHT; THE COWLING CAME LOOSE DURING FLIGHT, AND CONTACTED THE MAIN ROTOR BLADES BEFORE IT SEPARATED FROM THE HELICOPTER.

Source: NTSB case CHI90LA074

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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