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Let's not get caught up in the media speculation.Does anyone know if US has replaced the instruments (pitot tubes) per Airbus recommendations?
Are you second-guessing the engineers at Airbus? Perhaps that attitude is why mx at US has become so pathetic, in almost every respect.How many Pitot tubes are there?
Chances of all of them icing up and giving false readings?
Would think the unit that reads the data more likely an issue then the source of the data.
How many Pitot tubes are there?
Chances of all of them icing up and giving false readings?
Would think the unit that reads the data more likely an issue then the source of the data.
There was an issue at one time having to do with the heating elements in the pitots if memory serves. I was on the 320 then. It's been a while since I heard anything about it.
A320 Driver B)
They are going to begin replacing them as soon as they're done with the modification of the 757 right recirc fans. Look for updated pitot tubes some time around 2045. (And that's not 8:45 pm!)
Unless the FAA mandates immediate action through an emergency Airworthiness Directive, the company will play this out to it's calendar extreme.
The BEA announced on June 5th, that so far only these facts have been verified:
- location near the planned route over the Atlantic in the vicinity of significant convective cells characteristic for the equatorial region
- from start of the automatic message transmissions the reported measured speeds were inconsistent.
Airbus Industries reminded all operators of Airbus Aircraft series A300 to A380 of the operational, abnormal and emergency procedures in the relevant Flight Crew Operation Manuals and Quick Reference Manuals regarding flying with unreliable airspeed.
More details of the ACARS messages have become available on June 5th and suggest following events while the airplane was in cruise (note, there is no message regarding electrics, hydraulics or engine problems):
02:10Z:
Autothrust off
Autopilot off
FBW alternate law
Rudder Travel Limiter Fault
TCAS fault due to antenna fault
Flight Envelope Computation warning
All pitot static ports lost
02:11Z:
Failure of all three ADIRUs
Failure of gyros of ISIS (attitude information lost)
02:12Z:
ADIRUs Air Data disagree
02:13Z:
Flight Management, Guidance and Envelope Computer fault
PRIM 1 fault
SEC 1 fault
02:14Z:
Cabin Pressure Controller fault (cabin vertical speed)
** anyone who has Airbus knowledge can see just how bad things were **
02:10Z:
Autothrust off
Autopilot off
FBW alternate law
Rudder Travel Limiter Fault
TCAS fault due to antenna fault
Flight Envelope Computation warning
All pitot static ports lost
02:11Z:
Failure of all three ADIRUs
Failure of gyros of ISIS (attitude information lost)
02:12Z:
ADIRUs Air Data disagree
02:13Z:
Flight Management, Guidance and Envelope Computer fault
PRIM 1 fault
SEC 1 fault
02:14Z:
Cabin Pressure Controller fault (cabin vertical speed)
** anyone who has Airbus knowledge can see just how bad things were **
Faults are listed that you could not possibly see in any scenario other than a fire in the E/E compartment or a massive electrical short... or an explosion.
Explosion, maybe. But I think the other two scenarios would have triggered a report of an overheated E/E compartment before any subsequent cascade of failures.