Starting July 1st, planes without retrofitted sensitive radar altimeters in the US cannot land in low visibility, potentially causing delays for travelers. This deadline is due to the increased power of 5G networks by US wireless companies, which could create interference without the necessary equipment. About 80% of domestic aircraft have undergone the upgrade, with some top carriers still needing to finish their fleet. Delays or cancellations are expected this summer, depending on the weather. All planes in the US must have an updated altimeter by February 2024. (aircraft altimeters, 5G interference, flight delays)
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