FR emergency landing in Genoa; "scenes of panic on board"
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Clue: the passenger oxygen masks deployed
an indicator light showed a possible depressurisation problem in the cabin," it said. "In conformity with standard operating procedure the captain deployed oxygen masks
Since you clearly failed to read the report
According to reports, the aeroplane experienced a depressurisation problem.
If there was no depressurisation, then it's highly unlikely that a descent from cruising altitude to FL100, no matter how fast, would have resulted in a cabin ROD rapid enough to account for passengers reportedly being hospitalised with ear injuries.
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The only 'light' I can think of in this scenario is the Cabin Altitude red warning light on the fwd instrument panel; next to the takeoff config warning light, as both warnings have the same audible warning sound. Surely if the Cabin Alt warning light came on the fact would have been confirmed by the Diff & cabin ROC gauges. Would anyone deploy the O2 based purely on a single light? Or is there another light I've forgotten about?
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According to reports, the aeroplane experienced a depressurisation problem
Last edited by Sunnyjohn; 25th Jan 2013 at 11:48.
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AvHerald indicates the possibility of a single bleed trip, precautionary descent ) not sure why) and a second bleed trip. Had one years ago on a BA 737 Classic - initial clues were were ram doors open at cruise alt on both packs, followed by single trip (no reset) then second trip. I hit reset again on the first pack and it reset, followed by the second so no descent required.
I guess 'bleed trip' explains the light?
I guess 'bleed trip' explains the light?
Last edited by BOAC; 25th Jan 2013 at 12:11.
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Why would 'bleed trip' not resettable require a descent to 10,000, or cause a depressurisation. I understand what you said about a 2nd trip, but that would require a multiple failure. Is that what happened here? Bleed trip = 1 pack in high flow. It does not require a descent Fl250. That's crew discretion. If in a descent with EAI on it would be prudent to descend with more than idle to avoid a possible 2nd trip, of the operating bleed. However, previous posts suggest this was not the case, as the descent was made well before normal TOD.
Once again we are speculating in the dark searching for the needle of truth. It's out there somewhere, but often it takes a long time to reach here.
Once again we are speculating in the dark searching for the needle of truth. It's out there somewhere, but often it takes a long time to reach here.
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A few more details...
...from L'Eco di Bergamo
Il racconto dei passeggeri Ryanair: «Sono stati momenti di terrore» - Cronaca - L'Eco di Bergamo - Notizie di Bergamo e provincia
"It all happened so suddenly. The masks came down; the aeroplane lost height fast and we didn't know what was going on. These were moments of terror." Understandably, Vittorio Bassi -- an employee in his 'forties who was one of the 93 passengers who, yesterday morning, found themselves on board a Ryanair flight from Valencia to Orio al Serio which was forced to make an emergency landing at Genoa because of a pressurisation problem -- is still in shock.
After the landing two passengers, a fifteen-year-old girl returning to Bergamo after visiting her sister in Spain, and a thirty-eight-year-old Spanish woman, were taken to two hospitals...[T]he captain took the aircraft down from 9,000 metres to 3,000 metres AMSL in a few minutes to enable the pressure in the aeroplane to be brought to a manageable level....
It appears that the ENAC -- the National Civil Aviation Agency -- intends to open an investigation into the incident.
After the landing two passengers, a fifteen-year-old girl returning to Bergamo after visiting her sister in Spain, and a thirty-eight-year-old Spanish woman, were taken to two hospitals...[T]he captain took the aircraft down from 9,000 metres to 3,000 metres AMSL in a few minutes to enable the pressure in the aeroplane to be brought to a manageable level....
It appears that the ENAC -- the National Civil Aviation Agency -- intends to open an investigation into the incident.
Il racconto dei passeggeri Ryanair: «Sono stati momenti di terrore» - Cronaca - L'Eco di Bergamo - Notizie di Bergamo e provincia
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Regardless of why they elected to descend, it is worth remembering that descent from FL400 to FL100 within the 12 minutes of pax oxy supply requires a significant average rate of descent.
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Ryanair emergency landing Genoa
My daughter and I were seated at the very back of the aircraft. I witnessed no panic. Some questions were asked of the cabin crew as to what was happening.
The crew did move about front to back trying to relay what they knew. We were generally apprehensive and frightened of the worst case as would be normal under the circumstances. We were asked by a crew member did we know how to open the rear emergency door. The crew member proceeded to remind us how, should they not be available to do it.
The shock of hearing 'prepare for emergency landing' and the deployment of oxygen masks stays with me. Once we had levelled out it would have helped allay fears if we knew that standard operating proceedure had taken place, followed by perhaps engines performing normally or/and fuseilage intergrity not compromised. Perhaps no communication of his nature is also SOP.
The crew did move about front to back trying to relay what they knew. We were generally apprehensive and frightened of the worst case as would be normal under the circumstances. We were asked by a crew member did we know how to open the rear emergency door. The crew member proceeded to remind us how, should they not be available to do it.
The shock of hearing 'prepare for emergency landing' and the deployment of oxygen masks stays with me. Once we had levelled out it would have helped allay fears if we knew that standard operating proceedure had taken place, followed by perhaps engines performing normally or/and fuseilage intergrity not compromised. Perhaps no communication of his nature is also SOP.
