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Search: Posts Made By: Airbubba
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18th Dec 2016, 21:30
Replies: 1,096
Views: 1,236,171
Posted By Airbubba

Our planes, even older ones like the RJ85, are...

Our planes, even older ones like the RJ85, are spewing streams of data that can be harvested for forensic and a lot of other purposes. And much of it, like ACARS and ADS-B is sent totally in the...
12th Dec 2016, 21:42
Replies: 1,096
Views: 1,236,171
Posted By Airbubba

Somehow, I don't think that holding pattern...

Somehow, I don't think that holding pattern depicted on the FR24 data was done after the engines quit.
12th Dec 2016, 16:50
Replies: 1,096
Views: 1,236,171
Posted By Airbubba

It looks like FR24 had six receivers near MDE...

It looks like FR24 had six receivers near MDE that could provide multilateration location data on playback. Some of the other flights depicted on the playback animation seem to be MLAT only with...
10th Dec 2016, 20:20
Replies: 1,096
Views: 1,236,171
Posted By Airbubba

Also, looks to me like the flight was level at...

Also, looks to me like the flight was level at FL300 for a while when it came back into receiver coverage approaching MDE, about 0217Z to 0233Z, before starting down in this FR24 data:
...
5th Dec 2016, 21:12
Replies: 1,096
Views: 1,236,171
Posted By Airbubba

I agree. :D Here's a link to Peter's...

I agree. :D

Here's a link to Peter's analysis:

Satcom Guru: LMI2933 LAMIA AVRO RJ85 Medellín Deadstick (http://www.satcom.guru/2016/12/lmi2933-lamia-avro-rj85-medellin.html)
4th Dec 2016, 00:20
Replies: 1,096
Views: 1,236,171
Posted By Airbubba

I think Dave is saying that the NUCp is set to...

I think Dave is saying that the NUCp is set to zero because the RJ85 ADS-B installation is not compliant with the local regulations even though its accuracy may be much better than 10 nm.

For...
3rd Dec 2016, 17:02
Replies: 1,096
Views: 1,236,171
Posted By Airbubba

I found this FlightAware plot of the holding: ...

I found this FlightAware plot of the holding:

https://flightaware.com/live/flight/LMI2933

It seems to agree with the Flightradar24 plot and it looks like the pattern is not as closely aligned...
3rd Dec 2016, 16:39
Replies: 1,096
Views: 1,236,171
Posted By Airbubba

You are right (as usual, I'm afraid ;)). I was...

You are right (as usual, I'm afraid ;)). I was looking at the track in this link I posted earlier:

https://www.flightradar24.com/data/aircraft/cp-2933/#bbef1b9

It doesn't show the taxi at Viru...
2nd Dec 2016, 23:46
Replies: 1,096
Views: 1,236,171
Posted By Airbubba

Were the RJ85's one of the early planes to get...

Were the RJ85's one of the early planes to get ADS-B installed perhaps?

Here's a 2012 post from an FR24 admin that mentions an 'old transponder' with a 'calculated position' instead of GPS in the...
2nd Dec 2016, 20:55
Replies: 1,096
Views: 1,236,171
Posted By Airbubba

Yep, I don't think that ADS-B data was inertial....

Yep, I don't think that ADS-B data was inertial. ;)
2nd Dec 2016, 20:21
Replies: 1,096
Views: 1,236,171
Posted By Airbubba

Are you sure? I thought ADS-B positions had to be...

Are you sure? I thought ADS-B positions had to be satellite based.

From a Boeing article:



http://www.boeing.com/commercial/aeromagazine/articles/qtr_02_10/pdfs/AERO_Q2-10_article02.pdf
...
2nd Dec 2016, 16:37
Replies: 1,096
Views: 1,236,171
Posted By Airbubba

Not sure I agree with your reading of the...

Not sure I agree with your reading of the approach plate turn point and glide path intercept but it does appear that the FR24 data shows the holding pattern several miles south of the procedure on...
30th Nov 2016, 18:18
Replies: 1,096
Views: 1,236,171
Posted By Airbubba

This is claimed to be ATC audio leading up to the...

This is claimed to be ATC audio leading up to the mishap as acquired by Radio W, a Colombian station, possibly the same audio posted earlier by dbma with a little background music:

Los audios de...
30th Nov 2016, 00:28
Replies: 1,096
Views: 1,236,171
Posted By Airbubba

Do you mean Avianca 9356? AV9356 was an A318...

Do you mean Avianca 9356? AV9356 was an A318 operating BOG-MDE with an ETA of 0304Z, a few minutes after CP2933 contact was lost on the Flightradar24 link posted earlier.

CP2933 was in holding at...
29th Nov 2016, 06:08
Replies: 1,096
Views: 1,236,171
Posted By Airbubba

Here's a Flightradar24 playback: ...

Here's a Flightradar24 playback:

https://www.flightradar24.com/data/aircraft/cp-2933/#bbef1b9
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