Incident report
Robinson R44 II crash near El Dorado Hills, California, United States
minor2017-08-25
Summary
Maintenance personnel's inadequate routine maintenance on the helicopter engine, which led to low cylinder compression, improper magneto timing, and camshaft lobe wear, which subsequently resulted in degraded engine performance.
Incident details
Date
2017-08-25
Location
El Dorado Hills, California, United States
Aircraft
Operator type
civil
Fatalities
0
Injuries
2
Probable cause
Pilot error
Phase of flight
cruise
Weather
VMC
Source
NTSB CAROL ↗38.7239, -121.0703
Quick stats
Severityminor
Fatalities0
Injuries2
SourceNTSB CAROL
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