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The FAA has announced that an “estimated 78 p.c of the U.S. industrial fleet” have been cleared to land at airports with 5G C-band, even beneath low-visibility situations. The company’s assertion comes after a week of controversy surrounding the rollout of AT&T and Verizon’s upgraded mobile tech, which saw US airlines warning of “catastrophic disruption” to journey and delivery and a few worldwide airways announcing they’d halt flights to some US airports.

At challenge are considerations that some radio altimeters gained’t correctly ignore alerts from the brand new 5G transmitters. Whereas there are precautions that ought to hold this from taking place, together with creating buffer zones around airports, an incorrect altimeter studying may trigger actual issues throughout a low-visibility touchdown.

Given the excessive stakes, the FAA has stated that solely planes with altimeters that it has examined and cleared can be allowed to land in sub-optimal situations at airports the place the brand new 5G tech has rolled out. You possibly can learn our explainer of the state of affairs, which fits into element concerning the last-minute confusion, here.

On January sixteenth, the company introduced that it had cleared two altimeters, which it bumped up to five on Wednesday. It stated the cleared altimeters had been put in in “some” variations of planes just like the Boeing 737, 747, and 777. The FAA modified that language on Thursday, saying that the 13 cleared altimeters ought to cowl “all” Boeing 717, 737, 747, 757, 767, 777, 787, MD-10/-11, and Airbus A300, A310, A319, A320, A330, A340, A350, and A380 fashions. It additionally notes that “some” Embraer 170 and 190 regional jets are lined.

The FAA continues to be predicting that some altimeters gained’t move the take a look at and can be “too vulnerable to 5G interference.” Planes geared up with these fashions gained’t be allowed to land at airports with the brand new 5G tech in low-visibility situations — which may forestall airways from scheduling any flights utilizing these planes to airports of concern, given the unpredictability of climate and the disruption such a diversion would trigger.

The carriers have been pissed off with the FAA and airways for his or her dealing with of the state of affairs. Their rollouts have been delayed multiple times, and on Tuesday, AT&T put out a statement lambasting the FAA’s “lack of ability to do what practically 40 nations have completed, which is to soundly deploy 5G expertise with out disrupting aviation companies.” Verizon adopted with the same assertion that additionally talked about different nations’ rollouts.

You possibly can learn the FAA’s full assertion on its 5G page, beneath the “FAA Statements on 5G” heading.

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