NTSB Identification: MKC83FA076.
The docket is stored on NTSB microfiche number 20858.
Accident occurred Monday, March 14, 1983 in ST. LOUIS, MO
Aircraft: ROBINSON R-22, registration: N9024Z
Injuries: 2 Fatal.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

THE HELICOPTER WAS OBSERVED BY SEVERAL WITNESSES FLYING AT 200-300 FEET ABOVE THE MISSISSIPPI RIVER. AS IT WOBBLED AND BUFFETED AND ROLLED TO THE RIGHT. IT WAS SPINNING AND THE TAIL ROTOR SEPARATED SHORTLY FOLLOWED BY AN EXPLOSION WITH A BLUEISH/WHITE SMOKE AND PIECES FLYING OFF AS IT FELL INVERTED. DURING THE FALL THE MAIN ROTOR SEPARATED AND WHAT WAS LEFT FELL INTO THE RIVER. A TUG BOAT RECOVERED SOME PAPERS, TWO CUSHIONS AND A WALLET BELONGING TO THE STUDENT PILOT. SEARCHING AND DRAGGING OPERATIONS WERE CONDUCTED FOR 4 DAYS WITH NEGATIVE RESULTS AND WERE TERMINATED. THE WRECKAGE AND BODIES HAVE NOT BEEN RECOVERED.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

REASON FOR OCCURRENCE UNDETERMINED

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