😔 Cuban 737 Down at Havana
#12
Gets Weekends Off
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😔 Cuban 737 Down at Havana
The winglets issue could be the curvature of the monitor the video is playing on. I think it distorted the wing tips just enough to make it look like it had winglets. I can make out enough of the engines to see they are the longer cowling from the -200.
Also, look at the time stamp. It jumps from 11:00 as the aircraft is falling to 16:06. That explains why there is no fireball in the video.
Also, look at the time stamp. It jumps from 11:00 as the aircraft is falling to 16:06. That explains why there is no fireball in the video.
#14
Yeah, that's what I was alluding to. But that wouldn't happen to a pax airplane unless all the people got up and ran to the back all at once. It would be really hard to load a 73 so it could take off but then not fly.
#15
Actually in the 74 incident it wasn't even the shifting of the cargo balance that brought it down, it was the fact that when the cargo shifted backwards it did so with enough force that it destroyed several hydraulic lines behind the aft pressure wall that controlled the elevator and thus the crew lost pitch control.
#16
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Joined APC: Jul 2013
Posts: 4,671
Actually in the 74 incident it wasn't even the shifting of the cargo balance that brought it down, it was the fact that when the cargo shifted backwards it did so with enough force that it destroyed several hydraulic lines behind the aft pressure wall that controlled the elevator and thus the crew lost pitch control.
Last edited by John Carr; 05-29-2018 at 09:36 AM.
#17
Actually in the 74 incident it wasn't even the shifting of the cargo balance that brought it down, it was the fact that when the cargo shifted backwards it did so with enough force that it destroyed several hydraulic lines behind the aft pressure wall that controlled the elevator and thus the crew lost pitch control.
It actually destroyed the jackscrew. The initial investigation assumed the weight shift caused the crash, but they determined in the sim that it would have been recoverable, even with the degraded hydraulics. The cargo (a military vehicle) rolled back, through the aft bulkhead and took out the horizontal stabilizer jackscrew, I think that allowed the h. stab to float freely, which is typically not controllable. Same was that AS MD crash.
#18
It actually destroyed the jackscrew. The initial investigation assumed the weight shift caused the crash, but they determined in the sim that it would have been recoverable, even with the degraded hydraulics. The cargo (a military vehicle) rolled back, through the aft bulkhead and took out the horizontal stabilizer jackscrew, I think that allowed the h. stab to float freely, which is typically not controllable. Same was that AS MD crash.
#19
On Jul 16th 2018 the airline released a 3 page press release stating, that cockpit voice and flight data recorders have been read out successfully. The investigation so far determined that the crew climbed the aircraft at too steep a pitch
angle (angle of attack) out of Havana leading to a stall and subsequent crash. The airline reasons that therefore the grounding of the airline as well as additional examinations imposed on the airline have no legal foundation, however, Mexico's DGCA have not responded to according requests by the airline. (Editorial note: according to ICAO rules only the investigation leader, Cuba's Accident Investigation Board, is permitted to talk about the progress of the investigation, participants in the investigation including the affected airline are not permitted to talk.
Some new info after the flight & data recorders were evaluated. Could be as simple as a stall caused by to high of a pitch on departure.
angle (angle of attack) out of Havana leading to a stall and subsequent crash. The airline reasons that therefore the grounding of the airline as well as additional examinations imposed on the airline have no legal foundation, however, Mexico's DGCA have not responded to according requests by the airline. (Editorial note: according to ICAO rules only the investigation leader, Cuba's Accident Investigation Board, is permitted to talk about the progress of the investigation, participants in the investigation including the affected airline are not permitted to talk.
Some new info after the flight & data recorders were evaluated. Could be as simple as a stall caused by to high of a pitch on departure.
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