Tall order: US aviation industry faces $4.5bn bill to replace 60,000 altimeters in next wave of 5G fiasco

A220 cockpit-c-Airbus

US operators are faced with replacing or upgrading some 58,600 radio altimeters across their fleets at a cost of at least $4.5 billion under a newly proposed FAA rule designed to prevent interference from expanded 5G wireless networks.

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