Esterline GLSSU Certified By EASA For ATR 42, 72.jpg ATR

Esterline GLSSU Certified By EASA For ATR 42, 72

Upgrade gives operators LPV capability.

Esterline Avionics Systems's CMA-5024 Satellite Based Augmentation System (SBAS) GPS Landing System Sensor Unit (GLSSU) received EASA supplemental type certification (STC) for installation on the ATR turboprop family, the supplier announced.

The STC, developed by Aeroconseil, was granted based on conformity demonstrated on an unnamed European airline's ATR 42s, Esterline said.

The CMA-5024 equips ATR 42s and 72s aircraft Localizer Performance with Vertical Guidance System (LPV) approach capability.  The unnamed airline plans to retrofit 13 of its ATRs, with seven already done.

“The Esterline CMC Electronics LPV solution resolves an important issue for the airline as some of their flight destinations are in the process of losing the ILS radio landing aid," Aeroconsiel explains.

A second ATR 42 operator, Air Saint-Pierre, also has selected the Aeroconseil STC.

The STC includes Esterline/CMC Electronics avionics equipment, including the CMA-5024 GPS precision approach receiver and CMA-5025 control panel. The systems is stand-alone, and LPV operations will have no impact on the existing navigation system, Esterline says. 

The CMA-5024 is a DO-260B compliant position source and, coupled with a compliant transponder, satisfies all DO-260B ADS-B Out mandates, Esterline said. The sensor provides Wide Area Augmentation System (WAAS) SBAS GPS capability from departure to approach and complies with published CNS/ATM navigational mandates.

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