S4CK MY F4CKING D1CK CORRUPT POS MOD
Boeing 737 Max pilots complained to feds for months about suspected safety flaw
111–120 of 307 posts
Re: Boeing 737 Max pilots complained to feds for months about suspected safety flaw
#112Earlier quoted context omitted.
It would be ironic if the lack of 737-MAX category for reports is why these reports never made it to the people who needed to see them, which caused the issue to go unnoticed.
1555013 is pretty damning in telling how the airlines treated the MAX as the same type as the 737-800: "I had my first flight on the Max [to] ZZZ1. We found out we were scheduled to fly the aircraft on the way to the airport in the limo. We had a little time [to] review the essentials in the car. Otherwise we would have walked onto the plane cold.My post flight evaluation is that we lacked the knowledge to operate th…
Is this the right #? 1517486 points to something about a tug crew error.
https://titan-server.arc.nasa.gov/ASRSPublicQueryWizard/Quer...
Re: Boeing 737 Max pilots complained to feds for months about suspected safety flaw
#113Can anyone at this point provide a legitimate argument for not grounding this model?
A best it's reactionary as we simply don't have enough data. The FAA said it will review once the crash investigation has been completed. Sometimes clustering occurs, such as Maylasian airlines being shot down and lost in an ocean and never found. We didn't ground the whole airline.
That's my take, accidents at the edges of the safe flight envelope are concerning but don't imply the aircraft is unsafe in general. Two losses during ordinary weather, operations, and daytime is extremely concerning.
Re: Boeing 737 Max pilots complained to feds for months about suspected safety flaw
#114This is off topic. But I've been skeptical of the commercial aviation accident risk compared to cars. I'm not saying cars are safer. But using accident count per mileage seems a bit odd, especially when the most risky parts of flying are taking off and landing. A plane travelling 400 more miles doesn't incur much more risk. But a car travelling 400 more miles incur a much bigger risk (e.g. fatigue, car malfunctioning…
It's a useful metric because, when comparing auto and plane safety, consumers are usually deciding between taking a plane and a car for the same distance. We could give them risk as a function of distance by taking the increased takeoff/landing risk into account, but generally people only compare the two for fairly long trips.
For the context of driving long distance, that makes sense.
Re: Boeing 737 Max pilots complained to feds for months about suspected safety flaw
#115This is NOT about MCAS
(Is my understanding)
So pick a narrative on why you want them grounded.
If it was MCAS then this is irrelevant.
We have Social Media wagging the dog atm.
Re: Boeing 737 Max pilots complained to feds for months about suspected safety flaw
#116Earlier quoted context omitted.
1555013 is pretty damning in telling how the airlines treated the MAX as the same type as the 737-800: "I had my first flight on the Max [to] ZZZ1. We found out we were scheduled to fly the aircraft on the way to the airport in the limo. We had a little time [to] review the essentials in the car. Otherwise we would have walked onto the plane cold.My post flight evaluation is that we lacked the knowledge to operate th…
Is this the right #? 1517486 points to something about a tug crew error. https://titan-server.arc.nasa.gov/ASRSPublicQueryWizard/Quer...
No – it should have been 1555013. Must have had the wrong number in the clipboard.
Re: Boeing 737 Max pilots complained to feds for months about suspected safety flaw
#117For a car analogy, imagine Tesla creates a new model that under certain conditions tends to over-steer left. To prevent any accidents because of that, they have added a system that turns the steering wheel clockwise. To disable the system it is not enough to try to prevent by force the steering wheel from turning, but you have to press a button that disables electric steering assistance. Notice they have never briefe…
I feel like every time someone insists on making a car analogy, it just piles on more evidence that car analogies never work.
At least you don't have to get a new endorsement on your license for every model of car.
Re: Boeing 737 Max pilots complained to feds for months about suspected safety flaw
#118For a car analogy, imagine Tesla creates a new model that under certain conditions tends to over-steer left. To prevent any accidents because of that, they have added a system that turns the steering wheel clockwise. To disable the system it is not enough to try to prevent by force the steering wheel from turning, but you have to press a button that disables electric steering assistance. Notice they have never briefe…
I feel like every time someone insists on making a car analogy, it just piles on more evidence that car analogies never work. At least you don't have to get a new endorsement on your license for every model of car.
Analogy implies partial similarity. Of course there will be differences.
Re: Boeing 737 Max pilots complained to feds for months about suspected safety flaw
#119Earlier quoted context omitted.
The alternative would have been redesigning the 737 such that it would be a different plane. There are advantages to keeping it as similar as possible to the previous generation. Boeing was in a bit of a bind. They had a plane (the 737) originally designed for different requirements (the plane is low to the ground) in wide spread use that the airlines wanted them to make more fuel efficient to stay competitive with A…
I'm not clear on why having different engines, different handling and MCAS makes it not-a-new-plane, but having the landing gear extend further down would make it a new plane?
I don't think it is a binary 'either its a new plane or its not' situation. I think every change has to be scrutinized for its safety implications, and for MCAS the analysis seems to have been, in part, that a failure could cause a trim runaway, but trim runaway is a circumstance for which there already exists a response, and that would not need changing (what this overlooked was that the pilots would experience it differently, as pulling back will not stop it, and if they stopped it with the trim button but didn't disable it, it would start up again ten seconds later.)
Putting a longer undercarriage on an airplane is not a trivial matter. You have to design it, test it, get it certified (a new undercarriage raises obvious safety issues) and put it into production. It's not just the undercarriage - it won't fit into the existing wheel wells, and furthermore, the legs might have to be moved further out on the wing, and then you have to rework that, as well.
Re: Boeing 737 Max pilots complained to feds for months about suspected safety flaw
#120Earlier quoted context omitted.
MCAS can only activate when flaps are raised, it shouldn't cause any unexpected trim changes during landing. This is why the Lion Air flight had a normal takeoff/climb until they raised the flaps.
Aren't the flaps up during landing?
I think you're confusing flaps with air brakes. Flaps are wing extensions that deploy downwards to increase lift and drag, air brakes are panels that deploy upwards to produce lots and lots of drag to slow the plane down after landing, like a parachute.