First, the testimony of Lt. Col. Theresa Long from her testimony at the Senate Committee of Sen. Ron Johnson from November, 2021:
Unrelated but totally related if the subject is aircraft safety…
Air travellers with 5G phones are being urged to turn them off on planes because the technology can disrupt landing gear, according to the French civil aviation authority.
The latest generation of smartphones and networks, currently being rolled out around the world, can interfere with critical aircraft instruments, says the agency.
This is due to signal interference from the device that could block data coming from altimeters that tell pilots how high above sea level they are flying.
The French Civil Aviation Authority sent a bulletin to airlines recommending that 5G phones should be turned off or put in ‘airplane mode’ during a flight.
The phenomenon is caused by ‘signal interference from a close frequency source of a strength that is similar or even superior to that of altimeters,’ the agency said.
This can cause errors ‘in instruments that are extremely critical during landing.’
It is already a requirement on many flights that mobile phones are turned off or placed in airplane mode during take off and landing.
Bosses from the world’s two biggest plane makers have called on the US government to delay the rollout of new 5G phone services.
In a letter, top executives at Boeing and Airbus warned that the technology could have “an enormous negative impact on the aviation industry.”
Concerns have previously been raised that C-Band spectrum 5G wireless could interfere with aircraft electronics.
US telecoms giants AT&T and Verizon are due to deploy 5G services on 5 January.
“5G interference could adversely affect the ability of aircraft to safely operate,” said the bosses of Boeing and Airbus Americas, Dave Calhoun and Jeffrey Knittel, in a joint letter to US Transportation Secretary Pete Buttigieg.
The letter cited research by trade group Airlines for America which found that if the Federal Aviation Administration’s (FAA) 5G rules had been in effect in 2019, about 345,000 passenger flights and 5,400 cargo flights would have faced delays, diversions or cancellations.
The aviation industry and the FAA have raised concerns about potential interference of 5G with sensitive aircraft equipment like radio altitude meters.