Page 3 - Pressurization System News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Gone off during three recent flights. i don't understand how the conditions can be, fly it, just not over water. how does that possibly make sense? >> well, what you have in that scenario is, you have a pressurization system that's tri triply redundant. and the first layer was blinking, saying it's a problem. it's likely as we look back on this, some sort of leak developed in the door that was causing that light to go off. they couldn't figure out what it was. alaska airlines has a policy that if you didn't have triply redundant pressurizaation syste you don't do the long flight over water. th...

Problem in the manufacture of the airplane, or it could be a problem in the design of this system, although this is not a new system, it was in the prior version of a 7:37. so it looks more and more like a manufacturing issue. >> we're also learning, as the ntsb is investigated all these details, we're learning that there were some lights that had come on three times in the last month. is this something that would cause alarm if you are a pilot, that they come on? >> so the light comes on, and it tells the pilot they have a press regulation problem. the pilots put their systems to alternate. a...

Alternate pressurization system the investigation is going to have to decide whether that is completely unrelated. or, whether that was a warning sign of a impending structural failure. >> so not necessarily a signal to the pilot on this point? >> it's a signal that means something is going wrong with the plane, but i do not think there is enough information that would have led them to this door because this door has not been a problem in the past. it has not been a problem with the prior version of the 7:37. so, the big question is going to be, how did they have a successful fleet in the 737 ...

Groups and -- but i can give you a few things. certainly, we're going to look at the maintenance records. we're going to look at repair. this was a new plane. it was delivered and was put into service on november 11th, but we're still going to want to look at that. we'll look at the pressurization system. we'll look at the -- the door, the components around the door like the stop fittings around the door. we're going to want to look at the hinges. there's a lot of information that we'll still have to look at. we'll want to know training, qualifications. we'll want to look at the safety briefin...

United Airlines flight to Rome turns back due to possible cabin pressure issue. No loss of pressure or oxygen mask deployment reported