FAA Sets Radio Altimeter Upgrade Deadlines

The FAA has finalised rules requiring aircraft to upgrade radio altimeters to meet new interference-tolerance standards by December 2030 (Part 121) or October 2034 (other categories), with replacement costs estimated at $80,000-$120,000 per unit plus installation. The upgrade addresses potential interference from 5G wireless services in the Upper C-band, and a rebate programme funded by spectrum auction winners will offset costs for eligible domestic operators.

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