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NTSB Report
January 30, 1992 · Robinson R-22 BETA · N2313G
Malabar, FL
Overview
Report Status
Probable Cause
Event Type
Accident
Date
January 30, 1992
Injury Outcomes
2 injuries (2 fatalities)
Location
Malabar, FL
Aircraft
Robinson R-22 BETA
Tail Number
N2313G
Operator
Melbourne Helicopters
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
MIA92FA072
THE CFI AND THE RATED STUDENT PILOT WERE IN LEVEL FLIGHT WHEN ONE ROTOR BLADE STRUCK THE CABIN AREA. THE HELICOPTER DESCENDED OUT OF CONTROL AND CRASHED. FURTHER EXAMINATION OF THE WRECKAGE REVEALED EVIDENCE OF MAIN ROTOR BLADE DIVERGENCE, MAST BUMPING, AND FRACTURE OF THE MAIN ROTOR MAST. EXAMINATION OF THE FLIGHT CONTROLS REVEALED OVERLOAD FRACTURES OF THE CYCLIC AND COLLECTIVE CONTROL TUBES. THE CFI HAD COMPLETED AN INSTRUCTIONAL FLIGHT WITH ANOTHER STUDENT 1/2 HOUR PRIOR TO THE ACCIDENT. THE STUDENT STATED THEY MAINTAINED A 70 KNOT CRUISE SPEED AND PERFORMED TURNS MAINTAINING ALTITUDE AND HEADING, AND THE CFI DEMONSTATED LOW ROTOR RPM AND RECOVERIES.
NTSB Probable Cause
A DIVERGENCE OF THE MAIN ROTOR FROM ITS NORMAL PLANE OF ROTATION FOR AN UNDETERMINED REASON WHICH RESULTED IN MAST BUMPING AND A MAIN ROTOR BLADE CONTACT WITH THE COCKPIT AREA.
Full Narrative
THE CFI AND THE RATED STUDENT PILOT WERE IN LEVEL FLIGHT WHEN ONE ROTOR BLADE STRUCK THE CABIN AREA. THE HELICOPTER DESCENDED OUT OF CONTROL AND CRASHED. FURTHER EXAMINATION OF THE WRECKAGE REVEALED EVIDENCE OF MAIN ROTOR BLADE DIVERGENCE, MAST BUMPING, AND FRACTURE OF THE MAIN ROTOR MAST. EXAMINATION OF THE FLIGHT CONTROLS REVEALED OVERLOAD FRACTURES OF THE CYCLIC AND COLLECTIVE CONTROL TUBES. THE CFI HAD COMPLETED AN INSTRUCTIONAL FLIGHT WITH ANOTHER STUDENT 1/2 HOUR PRIOR TO THE ACCIDENT. THE STUDENT STATED THEY MAINTAINED A 70 KNOT CRUISE SPEED AND PERFORMED TURNS MAINTAINING ALTITUDE AND HEADING, AND THE CFI DEMONSTATED LOW ROTOR RPM AND RECOVERIES.
Flight
Event TypeAccident
Event Time13:55 EST
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftRobinson R-22 BETA
Tail NumberN2313G
Aircraft CategoryHeli
DamageDestroyed
OperatorMelbourne Helicopters
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320-B2C · Reciprocating · 160
Seats2
People & Injuries
Injury Summary2 injuries (2 fatalities)
Fatal2
Serious0
Minor0
Uninjured0
Total2
Crew 1Age 26 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind230° @ 15 kt, gusting 20 kt
Visibility7 sm
CeilingNone
Temperature / Dew Point52
Altimeter29.00 inHg
Observation Time18:57
Weather SourceWFAC