Posted on 01/25/2022 3:59:27 PM PST by RomanSoldier19
The Federal Aviation Administration has issued an airworthiness directive (AD) for Boeing aircraft stemming from the use of 5G wireless towers. According to the AD released Tuesday, the radio altimeters on Boeing 777s and 747-8s can “experience interference” from 5G C-band wireless towers.
The AD is slated to be published in the Federal Register on January 27.
According to the document, the AD “was prompted by the determination that radio altimeters cannot be relied upon to perform their intended function if they experience interference from wireless broadband operations in the 3.7-3.98 GHz frequency band (5G-C band).”
Why This Matters The radio altimeter provides the pilot with information about how high the aircraft is above terrain. In instrument meteorological conditions, the pilot cannot see the terrain out the window and must rely on the instruments, such as an altimeter, to determine the aircraft’s position.
Faulty information could potentially put the aircraft dangerously low and may compromise other aircraft systems even in good weather, the AD continues. “A recent determination that this interference may affect multiple airplane systems using radio altimeter data, including the pitch control laws, including those that provide tail strike protections regardless of the approach type or weather,” according to the FAA documentatio
(Excerpt) Read more at flyingmag.com ...
Better yet- let them team up and beat the living crap out of the FDA.
What does the FDA have to do with it?
So 5G interference isn’t just a conspiracy theory.
We are so being set up.
Nothing- but they still deserve to get pummeled
Have no fear.
God wins.
This is a classic case of what happens when you have industry regulatory capture of two different Federal regulatory bodies (the FAA and the FCC).
The revolving doors between the industry and the regulators (at the senior political appointee level) made the regulators pawns of both industries.
This is an example of how the Swamp has failed the American people.
The two captured agencies were unable to negotiate with each other in good faith—and work out a compromise—so both industries went for the “winner take all” strategy—and both will suffer as a result.
The FCC awarded 5G bandwidth close to the bandwidth used by the airlines—which meant that the airlines would incur major costs to upgrade their planes to avoid signal leakage.
The cell phone industry tried to cram it down the throats of the airlines.
There are some posters here who blame the airlines for being “cheap”, but imho the airlines are not the only ones at fault.
Both industries acted in their own interests, and the .gov failed its responsibilities to negotiate a reasonable settlement.
If it can f with airplanes, what about trains and automobiles?
I believe Air Force One uses two Boeing 747-8’s.
“what about trains and automobiles”
Good question—maybe some tech experts here can answer it.
The issue is specific to the large Boeing airframes, 747 and 777. These planes use the radio altimeter to monitor all landings, not just CAT 1 low vis landings. The large planes have to be kept within a narrow range on flare to avoid tail strikes. Interference could cause spurious cockpit alerts or implement flight control corrections during this critical phase of flight and was considered and unacceptable risk. If Boeing can demonstrate it has a fix or some other procedure to mitigate the risk the FAA will lift the AD.
What a charlie foxtrot.
# There are some posters here who blame the airlines for being “cheap”, but imho the airlines are not the only ones at fault.
I strongly suspect that a lot of the folk complaining about airlines being ‘cheap’ have no idea of the timeline it takes to get ANY hardware certified for flight, or the kind of dependencies the systems in question have with other systems in modern aircraft. HAMS have been bitching about this frequency allocation for quite some time, but no one listens to them because they don’t have multi-billion dollar industries behind them.
“These planes use the radio altimeter to monitor all landings, not just CAT 1 low vis landings.”
Can the planes be landed without the electronic assists? Are pilot trained on how to fly the planes without these assists?
/smile
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