Sunday, December 6, 2020

The pilots had just acknowledged a radio frequency change

 

-Mourino and Santiago, high gov. officials, 
in fatal crash Mexico City 11-4-2008
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11-5-2008   Earlier this week suspected drug hitmen ambushed 

and killed two senior police officers with grenades 

and guns.  In the northern state of Sonora, next to Arizona, 

gunmen threw grenades and opened fire as the 

police chief walked into a hotel in the border city 

of Nogales on Sunday evening.  Hours later, closer to 

Mexico City, suspected cartel hitmen with automatic weapons 

shot dead the head of investigative police in the State of Mexico

 as he left his home for work.  https://www.dailymail.co.uk/news/article-1083159/Assassination-feared-Mexican-drug-busting-minister-dies-plane-crashes-rush-hour-traffic.html

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   In another laboratory in Washington, DC, the actuators of both 

vertical and horizontal stabilizers were analyzed in order 

to rule out that the accident had been caused by a failure 

in one of the elements of the control surface.  Another 

instrument of this type are aerial spoilers, whose 

computers that control them were also analyzed in 

a laboratory in the State of Indiana.

 In London, England the hydraulic actuators of 

these spoilers were analyzed because the 

manufacturer's origin is in that European country. 

In this case the report concludes that “neither 

the review in Washington, Indiana, nor London 

yielded any indication of a possible failure of these 

components that could suggest or indicate that 

regardless of the encounter with wake turbulence 

there may have been any problem in the aircraft control systems. “…

  7.- The current classification of light, medium and 

heavy aircraft for wake turbulence, wake turbulence 

separation, should be immediately reviewed by the 

aeronautical authority SENEAM and the International 

Civil Aviation Organization, to establish a new classification 

that they offer.  higher safety margins.    https://translate.google.com/translate?hl=en&sl=es&u=https://lasillarota.com/aquel-martes-4-de-noviembre-de-2008/65305&prev=search&pto=aue

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 11-15-2008  While the required minimum separation between 

the 767 and the Learjet was 5nm, the two were only 

4.15nm apart about 15s before the Learjet began its 

fatal descent….Images from a ground surveillance camera, released by the Mexican transport ministry, clearly show the 767's lights as it flies overhead and turns to make its final approach to the airport.  Shortly afterwards it briefly captures the Learjet diving towards the ground, at a nose-down pitch of 42°-46°, and the explosion on impact.  https://www.flightglobal.com/video-turbulence-from-767-suspected-in-mexican-learjet-crash/83929.article

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11-6-2008   At 18:42 when 2.7nm (5km) from the airport, the aircraft crashed as it was preparing to turn on to final approach for runway 05L.  The pilots had just acknowledged a radio frequency change, but did not issue any distress call before the accident.  https://webcache.googleusercontent.com/search?q=cache:nUMUzuKsG4IJ:https://www.flightglobal.com/pictures-and-audio-mexican-government-learjet-45-crashes-in-mexico-city/83771.article+&cd=1&hl=en&ct=clnk&gl=us

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robbreid   The crash occurred in clear weather, and in their last recorded radio conversation, the plane’s flight crew calmly discussed radio frequencies and speed with controllers.  The tape went silent just as radar lost the plane’s altitude reading.  https://discussions.flightaware.com/t/xc-vmc-learjet-45-crashes-in-mexico-city-suburb/6481/19

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at 18:46:26 of video:  the sudden appearance of a diving 

something just before crash.

https://www.youtube.com/watch?v=hzNovqPom74

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At 18:46 the flight was observed 

approaching runway 05L.  

The last radar position of the aircraft 

was 7.5 miles from the Mexico VOR on 

the 256 radial, at an altitude of 9700 feet 

at 185 kts airspeed.

Voice Data Recorder Excerpts

Pilot: That one’s got some turbulence.

Co-pilot: Hey man.

Pilot: Hey [expletive].

Pilot: Alvaro, what do we do, Alvaro?

Co-pilot: Hand it over to me, hand it over to me, hand it over to me.

Pilot: It’s yours Alvaro.

Pilot: [expletive]

Pilot: No, Alvaro.

Co-pilot: Diosito.  http://airflightdisaster.com/index.php/mexican-learjet-crash-update/

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falcon50flyer 10th Nov 2008, 20:15    there have been a few 

cases of asymmetric spoiler retraction on the LR-45; I've 

seen it in the sim, and trust 

me, it's violent roll with the nose falling right through.  

It seems to me that this upset occurred on the flight profile 

right about the point that spoilers may have been retracted 

before flap extension. 

…….

Christodoulidesd

15th Nov 2008, 18:40

CCTV:  MEXICO CITY, two things to look at here,the top right of the screen at around 19 seconds and then the reflection of the explosion on the helicopter to the left.

00:46:18 hours   [18:46:00!!]


Phone: Oh bastard

Pilot: Ay, ay

Pilot: Alvaro, what we do, Alvaro

Phone: Leave it, Leave it, Leave

Pilot: Alvaaro Tuya

Phone: Oh bastard

Pilot: Ay, ay

Pilot: Son of your #$@%! mother

Pilot: No Alvaro


"Whoa! What turbulence!" Capt. Martin de Jesus Oliva says, according to a transcript of a recorded conversation between the pilots released by the U.S. National Transportation Safety Board.

The pilots then swear and seem flustered about what to do.

"Alvaro what do we do, Alvaro?" Oliva says to his co-pilot, Alvaro Sanchez y Jimenez, whom officials say had more experience flying Learjets.

The co-pilot says, "Let me do it!  Let me do it!"

Oliva agrees to let his co-pilot takeover, but moments later is heard swearing and then saying "Nooooo! Alvaro!"

Sanchez then says "Oh my God!" and screaming is heard in the background before the tape goes silent.  Seven seconds later the jet smashed into rush-hour traffic.

https://www.pprune.org/archive/index.php/t-349720.html

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11–5-2008   the Sinaloa cartel is suspected in the death of the acting Mexican federal police chief in May.  “There are just so many coincidences, the fact that there were so many important people on the plane.  It seems like it could have been an attack,” said Oscar Villaruel, a 30-year-old architect staring at a newspaper’s images of the fiery crash as he got his shoes shined.  In Tijuana alone on Wednesday, seven people were killed.  Two of the victims were beheaded, and their bodies appeared to have been dissolved in acid.   https://www.eastbaytimes.com/2008/11/05/mexicos-no-2-official-dies-in-crash-sabotage-by-drug-lords-not-suspected/

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8-27-2019   Microwaves (high-frequency radio waves) are usually preferred, so this type of device is sometimes called a High-Powered Microwave, or HPM weapon.  Radio frequency weapons also overlap with Electromagnetic Pulse, or EMP weapons, which emit a powerful burst of radio waves in all directions.

  Unlike jammers, which just interfere with the signal received by radios or radar, radio frequency weapons do actual damage.  They do this by two methods: 'front door coupling', where radio waves are picked [up] by the antennas and aerials normally used for receiving, and in 'back door coupling', where wires inside the electronics act as receivers.  https://www.forces.net/news/technology/frontline-tech-how-are-radio-frequency-weapons-shaping-future-battlefields

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10-20-2004    RADIO FREQUENCY INTERFERENCE (RFI)  As use of the radio spectrum increases, the magnitude of RFI impact increases.  The nature of modern solid-state devices make them more susceptible to RFI than equipment used in the past when vacuum tubes where employed.  Interference does not respect users.  There is almost an unlimited number of sources, devices or elements that could either interfere with aeronautical facilities or cause aeronautical facilities to radiate RFI to other spectrum users.   https://webcache.googleusercontent.com/search?q=cache:wswDMhgzly8J:https://www.icao.int/safety/acp/inactive%2520working%2520groups%2520library/acp-wg-b-17/20041020_wp10_rfinterferenceresolution.doc+&cd=7&hl=en&ct=clnk&gl=us..

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August 2008   El Paso - The Mexican army and drug cartel operatives are among the likely sources of recent interference with El Paso police communications and the Digital El Paso wireless network, city officials said.  "The increased interference that resulted in dead zones or dead spots coincided with the arrival of the Mexican army in Juárez," said Gary Gordier, the city's information technology director. "They were affecting police and other emergency communications."  Dead zones occur when radio messages cannot be sent or received due to radio frequency interference.  http://www.banderasnews.com/0808/nt-mexinterference.htm

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