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L-3 Aviation Products
L-3 Electronic System Services is a division of L-3 Aviation Products.

MRO Brochure

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AP Help Line

L-3 Aviation Products has a centralized Help Line providing support for all L-3 AP products and aftermarket solutions:


Avionics Maintenance, Repair & Overhaul

L-3 ESS Avionics MRO delivers commercial and military avionics users with on-time delivery performance, competitive pricing, customer service and high quality backed by continuous improvement processes and a strong engineering core competency.

L-3 ESS has factory-trained technicians, manufacturing test equipment, obsolescence management experience, material inventory expertise and field service support to service over 25,000 OEM and third party items, including displays, Traffic Collision Avoidance Systems (TCAS), data recorders, inertial navigation, communications, radar, instrumentation and EO/IR equipment. L-3 ESS is your single source for all OEM and third party avionics maintenance, repair and overhaul needs.

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L-3 Aviation Products