NTSB Identification: MIA85IA015.
The docket is stored on NTSB microfiche number 26402.
Nonscheduled 14 CFR
Incident occurred Monday, October 22, 1984 in ORLANDO, FL
Aircraft: MBB BO-105, registration: N29144
Injuries: 4 Uninjured.
NTSB investigators used data provided by various sources and may not have traveled in support of this investigation to prepare this aircraft incident report.
THE PURPOSE OF THE FLT WAS TO TRANSPORT A 76 YR OLD PATIENT, WHO WAS IN CRITICAL CONDITION. THE FLT WAS NORMAL UNTIL IT WAS ON FINAL APCH TO A 7TH FLOOR, ROOFTOP, HOSPITAL HELIPORT. DURING THE APCH, THE PLT ATTEMPTED TO INCREASE THE COLLECTIVE TO SLOW THE RATE OF DESCENT. HOWEVER, THE COLLECTIVE CONTROL WOULD NOT RAISE. THE PLT WAS ABLE TO KEEP THE HELICOPTER FROM HITTING THE SIDE OF THE BUILDING, BUT SUBSEQUENTLY LANDED HARD ON A LOWER ROOFTOP AT THE 2ND FLOOR LEVEL. THERE WAS MINOR DAMAGE TO THE SKID CROSSTUBES, TAIL ROTOR, TAIL BOOM, LEFT HORIZONTAL STABILIZER FIN & AN ANTENNA. AFTER THE INCIDENT, THE PLT NOTED THAT A HAND HELD TYPE RADIO HAD LODGED BEHIND THE COLLECTIVE PITCH CONTROL.
The National Transportation Safety Board determines the probable cause(s) of this incident to be:ROTORCRAFT FLIGHT CONTROL,COLLECTIVE CONTROL..FOREIGN OBJECT
The National Transportation Safety Board determines the probable cause(s) of this incident to be:PLANNING/DECISION..IMPROPER..PILOT IN COMMAND
The National Transportation Safety Board determines the probable cause(s) of this incident to be:CONTROL INTERFERENCE
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