HELIVIB

On-Board version of Semia skills

Engine Vibration Control and Rotor Track and Balance (RTB)

The Supplement Type Certificate of Semia’s on-board system Helivib has been validated by EASA in April 2016 for AS350 family.

Helivib is designed to work without any human action during all operational flights. The maintenance team will only be focused on results review after each flight.

Helivib gives complete feedback on aircraft vibratory health in five steps

1. During each start-up, the equipment performs automatically a complete engine vibration check (the on generator and free turbine, on 1 to 3 channels)
2. At nominal rotor speed, during ground and hover conditions, Helivib turns automatically to RTB mode and measures vibrations on rotors (3 channels, tail rotor during ground condition only)
3. During the flight, the equipment is able to recognize any sequence by looking at flight conditions defined by the manufacturer for Rotor Track and Balance settings.
4. Back to the ground, when the helicopter power supply has been turned off, Helivib sends the measured data by GPRS transmission without human resources.
5. Finally, the maintenance technician performs the latest data review on a specific Semia software to determine the vibration status of the helicopter: able or not able to fly more without vibration setting or mechanical investigation.