New System Allows Airlines To Further Improve Efficiency And Passenger Comfort

Turboprop aircraft manufacturer ATR has certified its new Vibration Monitoring System (VMS) which will allow airlines to constantly monitor and fine tune propeller vibration. This innovation, which will be available on all new aircraft from March 2018, improves both aircraft reliability and passenger comfort. It will also be available to retrofit on in service aircraft, via Service Bulletin.

The new VMS will be permanently installed on the aircraft and replaces the previous temporary ground tooling systems used to monitor engine vibration. This equipment, which will be supplied by Meggitt Sensing Systems, removes the need for airlines to organize regular ground testing or put maintenance personnel on revenue flights, therefore improving maintenance efficiency.

VMS measures vibration at engine level in real time, via an acceleration sensor, or accelerometer, placed on each engine very close to the propeller. The vibration analysis performed throughout the flight within the Vibration Monitoring Control Unit will be stored for easy access after flight by Maintenance personnel through the MCDU (Multifunctional Control Display Unit). The resulting VMS report is then included in the Aircraft Condition Monitoring System, with precise directives to airline maintenance crews on how to balance the propellers.

Reducing propeller vibration improves the comfort for everyone on board by minimizing vibration and engine noise in the cabin. It also improves the reliability of engine components and of the aircraft as a whole, and ultimately reducing Direct Maintenance Costs.

"This new VMS is yet another example of an innovation that ATR has developed which can effectively improve the efficiency of our customers’ maintenance operations," said Tom Anderson, ATR’s Senior Vice-President Programs & Customer Services. "We are committed to continuously developing both our products and maintenance services solutions that we are able to offer to customers, allowing them to minimize the time their aircraft spends on the ground and ensure they maximize the revenues that they generate.”

(Source: ATR news release. Image from file)

FMI: www.atr-aircraft.com