Summary
On June 3, 2018, at approximately 16:00 LMT, a professional helicopter pilot operating an EC 130 T2 completed a flight from Wesołowo to Warsaw Babice. After landing, the pilot noticed a yellow-filtered warning lamp on the GOV panel, indicating a probable malfunction of the engine's EECU (Electronic Engine Control Unit).
Incident Details
After shutting down the helicopter and reapplying battery power, the yellow lamp remained illuminated steadily on the GOV warning panel. The pilot made the appropriate annotation in the helicopter's Pilot's Daily Tour (PDT) log. The event was reported to the CAMO HPL and to the technical personnel of the PART 145 Maintenance Organization Heli Invest Services.
Investigation and Outcome
The helicopter was grounded pending investigation. During troubleshooting, the maintenance organization, in consultation with the engine manufacturer, determined that the cause was a failure of the engine EECU. The component was replaced, and a subsequent ground test was performed with positive results. The helicopter was returned to service.
Cause
The incident was caused by a malfunction of the engine EECU system.
Safety Actions
No preventive actions were taken by the operator, and no safety recommendations were issued by the Polish State Commission for Aircraft Accident Investigation (PKBWL).