4 ms·

I know little about aviation nor this incident, but the pilot never once radioed panpan let alone mayday despite having the time to do so. This is very unusual

by A2017U1 8y ago

I know little about aviation nor this incident, but the pilot never once radioed panpan let alone mayday despite having the time to do so. This is very unusual. For anyone interested the best sources of knowledgeable commentary is ppprune and avherald. Every other site is armchair speculation.

throwawayinside 8y ago
I have a feeling you don’t understand what angle of attack is, or how quickly you die when the sensors + autopilot conspire against you on this metric.
- A2017U1 8y ago
  Sensors fail all the time, everything can be turned off. There's a half dozen ways to determine AoA and apparently the previous flight did exactly that, turn off the faulty sensor.
raverbashing 8y ago
Aviate, Navigate, Communicate in that order If you can't Aviate you don't do the other 2
cjbprime 8y ago
It's a little unusual, but not extremely. There's both the instruction to "aviate, navigate, communicate" -- in that order -- and the fact that when you are "task-saturated" you often straight up fail to hear people talking to you. If you believed your airplane was at imminent risk of a stall, it would be deeply negligent to spend mental cycles talking to ATC instead of fixing it. ATC exists to sequence traffic; they can't fly your plane for you.
- A2017U1 8y ago
  The pilot negotiated turning around and returning to the airport with ATC, which takes more effort than a distress call. The previous flight which suffered the same problems called in a PanPan before resolving the faulty sensor issue. Reports are also saying that this fault was noted on the last 4 flights.
paganel 8y ago
> but the pilot never once radioed panpan let alone mayday despite having the time to do so. Probably because he was too busy trying to keep the plane flying. Also, apparently Boieng hadn't notified the airlines and their pilots about this most recent "feature" that could see the airplane "pushing it down unexpectedly and so strongly that flight crews can’t pull it back up", which certainly must have added to the pilots' confusion in this case. > That warning came as a surprise to many pilots who fly the latest models for U.S carriers. Safety experts involved in and tracking the investigation said that at U.S. carriers, neither airline managers nor pilots had been told such a system had been added to the latest 737 variant—and therefore aviators typically weren’t prepared to cope with the possible risks.
dingaling 8y ago
AvHerald and Pprune have more industry input than most sites but aren't neutral by any stretch. As with any story, don't slavishly follow one source.
dingaling 8y ago
AvHerald and Pprune have more industry input than most sites but aren't neutral by any stretch. As with any story, don't slavishly follow one source. In fact with aircraft accidents my general advice is to ignore all 'coverage' for a year.
FabHK 8y ago
FWIW, they did radio their intent to return to the departure airport (CGK, AFAIK). They might not have formally declared an urgency or emergency, but you don't abort a flight just for fun.

throwawayinside 8y ago

I have a feeling you don’t understand what angle of attack is, or how quickly you die when the sensors + autopilot conspire against you on this metric.

A2017U1 8y ago
Sensors fail all the time, everything can be turned off. There's a half dozen ways to determine AoA and apparently the previous flight did exactly that, turn off the faulty sensor.

raverbashing 8y ago

Aviate, Navigate, Communicate in that order If you can't Aviate you don't do the other 2

cjbprime 8y ago

It's a little unusual, but not extremely. There's both the instruction to "aviate, navigate, communicate" -- in that order -- and the fact that when you are "task-saturated" you often straight up fail to hear people talking to you. If you believed your airplane was at imminent risk of a stall, it would be deeply negligent to spend mental cycles talking to ATC instead of fixing it. ATC exists to sequence traffic; they can't fly your plane for you.

A2017U1 8y ago
The pilot negotiated turning around and returning to the airport with ATC, which takes more effort than a distress call. The previous flight which suffered the same problems called in a PanPan before resolving the faulty sensor issue. Reports are also saying that this fault was noted on the last 4 flights.

paganel 8y ago

> but the pilot never once radioed panpan let alone mayday despite having the time to do so. Probably because he was too busy trying to keep the plane flying. Also, apparently Boieng hadn't notified the airlines and their pilots about this most recent "feature" that could see the airplane "pushing it down unexpectedly and so strongly that flight crews can’t pull it back up", which certainly must have added to the pilots' confusion in this case. > That warning came as a surprise to many pilots who fly the latest models for U.S carriers. Safety experts involved in and tracking the investigation said that at U.S. carriers, neither airline managers nor pilots had been told such a system had been added to the latest 737 variant—and therefore aviators typically weren’t prepared to cope with the possible risks.

dingaling 8y ago

AvHerald and Pprune have more industry input than most sites but aren't neutral by any stretch. As with any story, don't slavishly follow one source.

dingaling 8y ago

AvHerald and Pprune have more industry input than most sites but aren't neutral by any stretch. As with any story, don't slavishly follow one source. In fact with aircraft accidents my general advice is to ignore all 'coverage' for a year.

FabHK 8y ago

FWIW, they did radio their intent to return to the departure airport (CGK, AFAIK). They might not have formally declared an urgency or emergency, but you don't abort a flight just for fun.