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Mon, Nov 20, 2017

AD: Rockwell Collins, Inc. Traffic Surveillance System Processing Unit

AD NUMBER: 2017-22-14

PRODUCT: Certain Rockwell Collins, Inc. TSS-4100 Traffic Surveillance System Processing Units that incorporate TSSA-4100 Field Loadable Software (FLS) Rockwell Collins part numbers 10-0052-002/-003/-010/-011/-012/-100/-101 and are installed on airplanes.

ACTION: Final Rule.

SUMMARY:  This AD was prompted by five instances of air traffic control observing coasting (extrapolated stale data) of automatic dependent surveillance-broadcast data (position/velocity data). This AD requires installing the TSSA-4100 FLS upgrades on the TSS-4100 units.

COST: The FAA estimates that this AD affects 1,000 products installed on airplanes of U.S. registry. The cost of compliance is estimated to be $785 per product.

DATES: This AD is effective December 20, 2017.

FMI: AD

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