Search found 3589 matches

  • 1
  • 2
  • 3
  • 4
  • 5
  • 72
by kalvado
Wed Jan 26, 2022 1:01 am
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

Here is the AD for the 747 and 777: https://public-inspection.federalregister.gov/2022-01695.pdf?utm_source=federalregister.gov&utm_medium=email&utm_campaign=pi+subscription+mailing+list Approaches and Landings in the Presence of Radio Altimeter 5G C-Band Interference: Dispatching or releas...

Jump to post
by kalvado
Tue Jan 25, 2022 4:02 pm
Forum: Civil Aviation
Topic: PAE Commercial Flights Temporarily Suspended due to Fog and 5G
Replies: 7
Views: 1634

Re: PAE closed due to FOG and 5G

Far fetched but could this have AS shifting capacity to PAE sooner than scheduled Interesting question since their 737s are ok'd to operate in 5G areas. Longer term, isn't it just a matter of time before the E175s get the ok? Will the fact that some are Horizon and some are Skywest make a timing di...

Jump to post
by kalvado
Tue Jan 25, 2022 1:44 am
Forum: Civil Aviation
Topic: UA90 EWR-TLV turns back on Jan 21 due to unruly pax
Replies: 61
Views: 7774

Re: UA90 EWR-TLV turns back on Jan 21 due to unruly pax

As you continue to provide absolutely no proof that the crew made efforts to accommodate or otherwise take control of the situation. My stance is supported by the fact that a professional crew with likely decades of experience between them decided the incident warranted returning to base. Your posi...

Jump to post
by kalvado
Tue Jan 25, 2022 1:18 am
Forum: Civil Aviation
Topic: UA90 EWR-TLV turns back on Jan 21 due to unruly pax
Replies: 61
Views: 7774

Re: UA90 EWR-TLV turns back on Jan 21 due to unruly pax

I think you are presuming such an offer was not made in the first instance. Crews have hand held credit card collections machines and yes, commonly used in Emergency Exit grabs I have seen on United. It helps protect the people that purchased the upgrades. Media states the were disruptive and (exag...

Jump to post
by kalvado
Tue Jan 25, 2022 12:33 am
Forum: Civil Aviation
Topic: UA90 EWR-TLV turns back on Jan 21 due to unruly pax
Replies: 61
Views: 7774

Re: UA90 EWR-TLV turns back on Jan 21 due to unruly pax

Great idea everyone, let the inmates run the asylum. After all, if you prove that the crew is willing to let “obey crew commands” slide then why not go up there and have a business class seat for yourself, or hell, why not a jump seat or crew bunk. 77w has some great crew bunks up there, just go po...

Jump to post
by kalvado
Tue Jan 25, 2022 12:21 am
Forum: Civil Aviation
Topic: UA90 EWR-TLV turns back on Jan 21 due to unruly pax
Replies: 61
Views: 7774

Re: UA90 EWR-TLV turns back on Jan 21 due to unruly pax

The 150 remaining passengers who got screwed over a diversion and ultimately a cancelled flight were in that situation solely due to the actions of the passengers who self-upgraded and the events that ensued. The decision to divert and fly back to EWR is a question of safety over procedure and safe...

Jump to post
by kalvado
Tue Jan 25, 2022 12:08 am
Forum: Civil Aviation
Topic: UA90 EWR-TLV turns back on Jan 21 due to unruly pax
Replies: 61
Views: 7774

Re: UA90 EWR-TLV turns back on Jan 21 due to unruly pax

Great idea everyone, let the inmates run the asylum. After all, if you prove that the crew is willing to let “obey crew commands” slide then why not go up there and have a business class seat for yourself, or hell, why not a jump seat or crew bunk. 77w has some great crew bunks up there, just go po...

Jump to post
by kalvado
Tue Jan 25, 2022 12:05 am
Forum: Civil Aviation
Topic: UA90 EWR-TLV turns back on Jan 21 due to unruly pax
Replies: 61
Views: 7774

Re: UA90 EWR-TLV turns back on Jan 21 due to unruly pax

All true. But none of that has anything to do with whether or not criminal charges were filed. So far, this is UA decision to divert. A criminal conviction would be great proof that the person actually did something very wrong and caused that decision. Right now, once those pax refuse to pay, UA wo...

Jump to post
by kalvado
Mon Jan 24, 2022 11:51 pm
Forum: Civil Aviation
Topic: UA90 EWR-TLV turns back on Jan 21 due to unruly pax
Replies: 61
Views: 7774

Re: UA90 EWR-TLV turns back on Jan 21 due to unruly pax

Why would it be difficult to secure reimbursement without criminal charges? UA's CoC provides for reimbursement: Unless they pay voluntarily, UA will have to sue them as a first step. That has some PR risk involved. After that you then have to collect the judgement, which depending on the passenger...

Jump to post
by kalvado
Mon Jan 24, 2022 10:27 pm
Forum: Civil Aviation
Topic: UA90 EWR-TLV turns back on Jan 21 due to unruly pax
Replies: 61
Views: 7774

Re: UA90 EWR-TLV turns back on Jan 21 due to unruly pax

The time has come for the airlines to apply harsh penalties for this type of behavior, particularly when they trigger a diversion and it is clear that the passenger or passengers are the sole culprits. The added costs shouldered by the airline for the diversion (fuel, over time, re-accommodation fo...

Jump to post
by kalvado
Mon Jan 24, 2022 7:40 pm
Forum: Civil Aviation
Topic: UA90 EWR-TLV turns back on Jan 21 due to unruly pax
Replies: 61
Views: 7774

Re: UA90 EWR-TLV turns back on Jan 21 due to unruly pax

When you are talking customer service vs. safety on board a plane, safety will win out every time. If the crew felt it was necessary to have these passengers removed ASAP then sorry for everyone else who gets hosed but a diversion is what is going to happen. The fact that this flight turned around ...

Jump to post
by kalvado
Mon Jan 24, 2022 7:29 pm
Forum: Civil Aviation
Topic: UA90 EWR-TLV turns back on Jan 21 due to unruly pax
Replies: 61
Views: 7774

Re: UA90 EWR-TLV turns back on Jan 21 due to unruly pax

The time has come for the airlines to apply harsh penalties for this type of behavior, particularly when they trigger a diversion and it is clear that the passenger or passengers are the sole culprits. The added costs shouldered by the airline for the diversion (fuel, over time, re-accommodation fo...

Jump to post
by kalvado
Mon Jan 24, 2022 7:07 pm
Forum: Civil Aviation
Topic: UA90 EWR-TLV turns back on Jan 21 due to unruly pax
Replies: 61
Views: 7774

Re: UA90 EWR-TLV turns back on Jan 21 due to unruly pax

The time has come for the airlines to apply harsh penalties for this type of behavior, particularly when they trigger a diversion and it is clear that the passenger or passengers are the sole culprits. The added costs shouldered by the airline for the diversion (fuel, over time, re-accommodation fo...

Jump to post
by kalvado
Mon Jan 24, 2022 5:42 pm
Forum: Civil Aviation
Topic: UA90 EWR-TLV turns back on Jan 21 due to unruly pax
Replies: 61
Views: 7774

Re: UA90 EWR-TLV turns back on Jan 21 due to unruly pax

The time has come for the airlines to apply harsh penalties for this type of behavior, particularly when they trigger a diversion and it is clear that the passenger or passengers are the sole culprits. The added costs shouldered by the airline for the diversion (fuel, over time, re-accommodation fo...

Jump to post
by kalvado
Mon Jan 24, 2022 2:00 pm
Forum: Civil Aviation
Topic: Small GA aircraft made in 1947 onwards how are they still flying?
Replies: 29
Views: 4347

Re: Small GA aircraft made in 1947 onwards how are they still flying?

Copy all what you said with electric cars. Apart that we did not figure out how to produce all that electricity, end point distribution will be an issue. Just think to all this blocks in old cities, with hundreds of aparments without their own garage or park place. BTW, why aircraft engines need 10...

Jump to post
by kalvado
Sun Jan 23, 2022 10:47 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

As already posted upthread, frequency used by Japanese 5G signal are even closer to the altimeter band in question than those in the US yet none of the airlines have problem with their domestic operation or carrier from nearby countries or US carriers flying into Japan I replied to one of those pos...

Jump to post
by kalvado
Sun Jan 23, 2022 10:17 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

I wonder (off topic but reading up on it last night) but how does 5G also affect the EAS system frequencies and deployment, if anything? https://en.wikipedia.org/wiki/Specific_Area_Message_Encoding Also rolled out in 2021 were the first examples of an Earthquake Warning System on the West Coast: ht...

Jump to post
by kalvado
Sun Jan 23, 2022 9:36 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

I think it should be pointed out that it's been a political agenda to downsize the regulatory authorities in general and then to often staff the executive positions with people with a non-technical background and an anti-regulatory stance. You get the government you elect. Small government and lean...

Jump to post
by kalvado
Sun Jan 23, 2022 4:04 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

Works for domestic carriers, but I do not believe that foreign airlines will be comfortable with such assurances from the FAA, liability only goes so far internationally. So if they are unable to use certain a/c in their fleet or do not have options they may be difficult, not sure there is much the...

Jump to post
by kalvado
Sun Jan 23, 2022 12:03 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

The solution is simple. C band band pass filters for radar applications are already on the market as a standard product. Here is an example from a quick Google search: http://microwavefilter.com.s3-website-us-east-1.amazonaws.com/c-band-lp3.html Fix the stupid 1970’s technology receivers to not pic...

Jump to post
by kalvado
Sat Jan 22, 2022 10:35 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

RADALT played zero in the accident. Crew was pressured and failed to resist thd pressure and flew below the established minimums. I’m trying what limitation in the RADALT was causal? Radalt is obviously not the root cause, no questions. But just imagine they had a precise way of flying 200 feet ove...

Jump to post
by kalvado
Sat Jan 22, 2022 10:14 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

Not a link, but should be easy to find - Polish presidential aircraft crash. Pilot was trying to land in dense fog, descended by radalt - and ended up flying below runway level and into rising terrain. The crew of that flight attempted to descend below the published minimums and ignored the warning...

Jump to post
by kalvado
Sat Jan 22, 2022 9:31 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

Radio altimeters are simple yet precise devices that work without external infrastructure or databases. They're relatively immune to environmental influences and don't need recalibration in-flight. Literally the only drawback is that they're sensitive to RF interference, which wasn't an issue until...

Jump to post
by kalvado
Sat Jan 22, 2022 9:09 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

Radio altimeters are simple yet precise devices that work without external infrastructure or databases. They're relatively immune to environmental influences and don't need recalibration in-flight. Literally the only drawback is that they're sensitive to RF interference, which wasn't an issue until...

Jump to post
by kalvado
Sat Jan 22, 2022 3:28 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

One of ideas which I may want to see implemented somewhere sometime is a local "gps". Satellite based gps is good for global ops, e.g. for military - who happen to be in control. Same principle can be used for a local system, with fixed transmitters. Indoor shopping centers or sports venu...

Jump to post
by kalvado
Sat Jan 22, 2022 3:10 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

I admit that I like the idea of transmitters around airports as a permanent fix, it is old technology, works every day for ILS, VOR etc., unfortunately thisî is a long term fix involving hardware, new dual purpose RADALT's, transmitters, stations, turn of the century timing on deployment. But trans...

Jump to post
by kalvado
Sat Jan 22, 2022 2:26 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

This feels similar to what we're seeing with RADALTs. As far as we can tell, vendors push some paper at FAA that says they think they're cool with regard to operation in the presence of 5G towers, FAA ticks the box, and everyone's on the train home in time for supper. The fact that such is not taki...

Jump to post
by kalvado
Fri Jan 21, 2022 8:49 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

Somebody please explain to me how hardware approval can be safe enough for a temporary time period, but not safe enough for an indefinite time period. This reminds me of how Boeing thought the MAX would be safe enough after crash #1 until their software patches would be available. Risk management. ...

Jump to post
by kalvado
Fri Jan 21, 2022 8:22 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

DLPMMM wrote:
This seems very drawn out and complicated for something that should be able to be fixed with a simple band pass filter on the receiver.

Bureaucratic vs engineering approach. Guess which one is native to FAA.

Jump to post
by kalvado
Fri Jan 21, 2022 7:44 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

So nothing happened for over a year and suddenly in the space of a few days a high fraction of the hardware is cleared? What took so long to get going, guvmnt? We are being told in this thread that the clearance is only temporary. Somebody please explain to me how hardware approval can be safe enou...

Jump to post
by kalvado
Fri Jan 21, 2022 6:08 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

And an interesting statement about effect on approved operations in this thread: https://www.airliners.net/forum/viewtopic.php?f=3&t=1469507 Here's a little more info for you since you're questioning my answer: The Embraer 175 has a logic that inhibits certain EICAS messages in different phases ...

Jump to post
by kalvado
Fri Jan 21, 2022 6:06 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

Could passive reflectors in the last ten miles of a flight path be constructed to help with this. Also, could those reflectors be tuned and aimed for maximum reflection back to the plane. Us small boat operators are often told that passive radar reflectors can ensure we are seen. I don't think so. ...

Jump to post
by kalvado
Fri Jan 21, 2022 4:03 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

So nothing happened for over a year and suddenly in the space of a few days a high fraction of the hardware is cleared? What took so long to get going, guvmnt? We are being told in this thread that the clearance is only temporary. As some wise man say, Reminds me of a saying: there's nothing as per...

Jump to post
by kalvado
Thu Jan 20, 2022 11:44 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

Note: Urban 5G base stations are limited to 1584 W /MHz , i. e. at a channel bandwidth of 20 MHz you'd measure a total power output of 31.7 kW right in front of the antenna. The "true" power output (how much RF power goes into the antenna) is still in the 100 W range thanks to highly dire...

Jump to post
by kalvado
Thu Jan 20, 2022 6:23 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

Again, it's not clear what standard FAA is applying when deciding to accept the information that substantiates that the RADALT is not susceptible to C-Band RFI. I presume they aren't setting too high a bar if they can tick the box in just a few day's time. Well at any rate it appears those stone ag...

Jump to post
by kalvado
Thu Jan 20, 2022 6:21 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

Similar claims have been repeated multiple times in this thread. However, when I look for confirmation of the claims, what I find instead is the FCC saying the C-Band auction was less than a year ago: https://www.fcc.gov/document/fcc-announces-winning-bidders-c-band-auction What was actually happen...

Jump to post
by kalvado
Thu Jan 20, 2022 2:40 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

Thales ERT-530 and -540 is now AMOC approved as well. For those wondering (like me, who just did some googling), AMOC is "Alternative Method of Compliance" and a FAA document I googled said "The proposed AMOC must include specific conditions that would address the unsafe condition (e...

Jump to post
by kalvado
Thu Jan 20, 2022 8:00 am
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

So to recap. The band was auctioned off years ago. The airlines and faa new about this years ago. Then att and verizon turned their towers on after saying they were going to for months and weeks And then all the altimeters got approved within 24 hours of that? Similar claims have been repeated mult...

Jump to post
by kalvado
Thu Jan 20, 2022 7:40 am
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

Thales ERT-530 and -540 is now AMOC approved as well. For those wondering (like me, who just did some googling), AMOC is "Alternative Method of Compliance" and a FAA document I googled said "The proposed AMOC must include specific conditions that would address the unsafe condition (e...

Jump to post
by kalvado
Wed Jan 19, 2022 9:56 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

But there are other factors. In addition to insertion loss, make up gain, and oscillation,potential RF issues within the unit, there are phase-shift, not everything is linear so you are talking testing and recertification. A steeper filter could be made by a high-schooler, but steeper filters means...

Jump to post
by kalvado
Wed Jan 19, 2022 9:10 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

One of the models is most likely the Rockwell-Collins LRA-2100 , which is the default on the A350 but has been fitted to other models (A320, A330) as well. A second approved model should be the Thales ERT 550 https://www.thalesgroup.com/en/communication-and-navigation-commercial-aircraft , which is...

Jump to post
by kalvado
Wed Jan 19, 2022 9:08 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

So far, 777 and 787 seem to be confirmed as affected. So much for modern. Airplane models with one of the five cleared altimeters include some Boeing 717, 737, 747, 757, 767, 777 , MD-10/-11 and Airbus A300, A310, A319, A320, A330, A340, A350 and A380 models. So half of your fanboy estimate just fl...

Jump to post
by kalvado
Wed Jan 19, 2022 7:46 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

just in case - let me show you the scope of work from my semi-educated RF understanding. This is a commercially available filter for similar frequency range. Not exactly what altimeters need, but a good idea of how things look: https://www.pasternack.com/8-section-band-pass-filter-7.9-8.4-ghz-passb...

Jump to post
by kalvado
Wed Jan 19, 2022 6:55 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

787 - a totally new plane - was supposed to go from start to finish in 5 years. it took 8 or so. 737MAX full computer system was fully redesigned in somewhat over a year. So 4-6 years for a single filter? No. Still 4 years? Fire everyone on property and hire some professionals. Have you been involv...

Jump to post
by kalvado
Wed Jan 19, 2022 6:22 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

The MAX was one system, well understood, not remotely similar to changing an installed fleet of, perhaps 20,000 frames. Every type built in the last 25 years is affected. The 787 was well into design when the formal announcement was made and Boeing has years of carbon fiber experience in the B-2 pr...

Jump to post
by kalvado
Wed Jan 19, 2022 6:16 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

Perhaps you missed GalaxyFlyer’s earlier post that certifying new equipment was a minimum 4-6 year affair. May I disbelieve that? 787 - a totally new plane - was supposed to go from start to finish in 5 years. it took 8 or so. 737MAX full computer system was fully redesigned in somewhat over a year...

Jump to post
by kalvado
Wed Jan 19, 2022 6:10 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

RJs either wait their turn for review or are all problematic. Many RJs aren't equipped for low-visibility (ILS CAT II / III), or their pilots aren't certified / trained to use it. It's a relatively small issue, operationally, to cancel or delay short haul flights for weather, while maintaining the ...

Jump to post
by kalvado
Wed Jan 19, 2022 5:18 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

The expedient thing for the FAA to do was nothing, which is pretty much what they did. No way did they have the resources to clear up their side of the problem within the time frame the telecomms planned for 5G C-band rollout. Certifying new equipment and procedures was going to take way longer tha...

Jump to post
by kalvado
Wed Jan 19, 2022 5:11 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

The FCC sold the licenses, and the FAA failed to act expediently on an issue that has certified parts operating outside the licensed and advertised range. The expedient thing for the FAA to do was nothing, which is pretty much what they did. No way did they have the resources to clear up their side...

Jump to post
by kalvado
Wed Jan 19, 2022 5:09 pm
Forum: Civil Aviation
Topic: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference
Replies: 504
Views: 63104

Re: FAA to prohibit many flight operations due to risk of ‘5G’ wireless interference

FCC certification requirement was, for ages, that device should not cause interference to others, but should be able to tolerate interference from other devices. Again, technically speaking, any transmission from the aircraft is FCC licensed. It is mostly formal thing, but yet. Looks like altimeter...

Jump to post
  • 1
  • 2
  • 3
  • 4
  • 5
  • 72