Accident Details
Date
Friday, July 30, 1993
NTSB Number
LAX93LA308
Location
VERDI, NV
Event ID
20001211X12967
Coordinates
39.510414, -119.989784
Aircraft Damage
Substantial
Highest Injury
None
Fatalities
0
Serious Injuries
0
Minor Injuries
0
Uninjured
2
Total Aboard
2
Probable Cause and Findings
THE INSTRUCTOR'S IMPROPER SUPERVISION OF THE FLIGHT; THE DUAL STUDENT'S IMPROPER IN-FLIGHT DECISION TO FOLLOW ANOTHER HELICOPTER ON DEPARTURE AND THE DUAL STUDENTS DELAY IN CORRECTING THE INADVERTENT YAW. FACTORS RELATED TO THIS ACCIDENT WAS THE INADVERTENT ENCOUNTER WITH THE WAKE TURBULENCE FROM THE PRECEDING DEPARTING HELICOPTER; THE DUAL STUDENT'S IMPROPER USE OF THE THROTTLE AND THE DUAL STUDENTS FAILURE TO MAINTAIN ADEQUATE ROTOR RPM.
Aircraft Information
Registration
N549SM
Make
ROBINSON
Serial Number
1549
Engine Type
Reciprocating
Data Source
Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# LAX93LA308