NTSB Identification: LAX83FUA01
14 CFR Part 91: General Aviation
Accident occurred Wednesday, October 06, 1982 in SANTA ANA, CA
Probable Cause Approval Date: 10/06/1983
Aircraft: ROBINSON R22, registration: N8358B
Injuries: 1 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 COMMERCIAL PLT WAS RATED IN FIXED WING ACFT, BUT IN THE HELICOPTER, HAD STUDENT PRIVILEGES ONLY. HE HAD OBTAINED APRX 37 HRS OF DUAL INSTRUCTION & 3 HRS OF SOLO TIME IN THE ROBINSON R22 HELICOPTER; HOWEVER, 1.3 HRS OF HIS SOLO TIME WAS LIMITED TO HOVER FLT ONLY. HE WAS NOT ENDORSED FOR UNSUPERVISED SOLO ON 10/6/82. HE TOOK OFF ON THE X-COUNTRY FLT TO COMMUTE TO HIS PLACE OF BUSINESS. WHILE EN ROUTE, THE ACFT WAS OBSERVED FLYING LOW & FAST WHEN THE MAIN ROTOR STRUCK THE COCKPIT. ACCORDING TO WITNESSES, THE HELICOPTER WAS FLYING IN LEVEL FLT & THE ENG WAS RUNNING "FLAT OUT" UNTIL THE MAIN ROTOR SYS SEPARATED. THE HELICOPTER THEN ENTERED A STEEP DIVE, CRASHED & BURNED. EXAM OF THE WRECKAGE REVEALED THAT MAST BUMPING & SEVERANCE OF THE MAIN ROTOR DRIVE SHAFT HAD OCCURRED. THE EXAM FAILED TO DISCLOSE ANY FAILURE, MALFUNCTION OR ABNORMALITY PRIOR TO THE MAIN ROTOR SEPARATION.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:REASON FOR OCCURRENCE UNDETERMINED
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