Bad weather- ITCZ (Inter-Tropical Convergence Zone) -Massive CB around the area ~severe Icing ~severe turbulence
Inexperienced crew handle difficult weather.- Captain went to crew rest over ITCZ. -Least experienced crew become Pilot Flying.
Pitot design - after the incident, multiple airlines reported that pitot design has flaw.
Threats#1 and #3 lead to Unreliable Airspeed.-all 3 pitot tube was froze up and blocked.-all the data input was incorrect and lead to the autopilot disconnect.
Confusionmultiple warnings and confused the crew.
Errors:
Misinterpret of the situation.-the crew failed to indent the Unreliable airspeed.
Wrong reaction and input to induce nose up pitch-eventually entered a deep stall.
Confusing and ignored the stall warning.-also, due to confusion, the senior crew was not aware that the other crew is pulling the sidestick fully backward. (Dual input)
after the accident, airline and airbus work together mitigate these Threats and Errors.
Airlines provide better training on Unreliable Speed indication.Thales re-design the pitot static system.
Threat: Crew Swiping (Inexperienced crew have to deal with problems)
Instrument Error
Error: Did not follow SOP (Operation)
Callouts are not specific (did not point out the reading of instrument and identify the status of the plane, and think they are 'too fast' and 'going down') (Communication)
No matter what happened: Aviate, Navigate, Communicate
Stabilize the plane and flight path first, then deal with the problem and get necessary help (captain, atc, company, etc),
Identify possible threat (weather, unsafe operations, unsatisfactory performance of aircraft,weird instrument reading,etc), callout, confirmed by both PF and PM, take action
Follow the company's SOP (if able and possible)
Knowing cold weather operation in cold weather (Aware of icing on the wing/engine) (Very important for operating GA aircraft in cold weather)
Lets discuss this in depth with TEMThreats:Weather/aircraft design/inexperienced crewError: wrong input/misunderstand of the situationWhat other threats and error do u guys think?
Very detailed explanation! Thanks!
AF447
Threats:
Bad weather- ITCZ (Inter-Tropical Convergence Zone) -Massive CB around the area ~severe Icing ~severe turbulence
Inexperienced crew handle difficult weather. - Captain went to crew rest over ITCZ. -Least experienced crew become Pilot Flying.
Pitot design - after the incident, multiple airlines reported that pitot design has flaw.
Threats#1 and #3 lead to Unreliable Airspeed. -all 3 pitot tube was froze up and blocked. -all the data input was incorrect and lead to the autopilot disconnect.
Confusion multiple warnings and confused the crew.
Errors:
Misinterpret of the situation. -the crew failed to indent the Unreliable airspeed.
Wrong reaction and input to induce nose up pitch -eventually entered a deep stall.
Confusing and ignored the stall warning. -also, due to confusion, the senior crew was not aware that the other crew is pulling the sidestick fully backward. (Dual input)
after the accident, airline and airbus work together mitigate these Threats and Errors.
Airlines provide better training on Unreliable Speed indication. Thales re-design the pitot static system.
got it?
I don't know much about TEM, but I will try
Threat: Crew Swiping (Inexperienced crew have to deal with problems)
Instrument Error
Error: Did not follow SOP (Operation)
Callouts are not specific (did not point out the reading of instrument and identify the status of the plane, and think they are 'too fast' and 'going down') (Communication)
No matter what happened: Aviate, Navigate, Communicate
Stabilize the plane and flight path first, then deal with the problem and get necessary help (captain, atc, company, etc),
Identify possible threat (weather, unsafe operations, unsatisfactory performance of aircraft,weird instrument reading,etc), callout, confirmed by both PF and PM, take action
Follow the company's SOP (if able and possible)
Knowing cold weather operation in cold weather (Aware of icing on the wing/engine) (Very important for operating GA aircraft in cold weather)