AF447

[augustusjeremy]

341115

It is really not clear that all pitots were disagreeing (at least from what we have - maybe the ACARS message line was cut to be printed).

From the A330 TroubleShooting Manual:
Source EFCS2 Class : 1 HARD
Identifiers : EFCS1,AFS
341115 - PROBE-PITOT 1+2 / 2+3 / 1+3 (9DA)
Le TSM (Trouble Shooting Manual) utilisé il y a deux jours indique :



34-11-15 EFCS2 : TASK 27-91-00-810-822
Disagree of the Pitot Probe Data in the FCPCs
1. Possible Causes

• pitot probe

2. Job Set-up Information

• A. Referenced Information
  • AMM 34-11-15-000-801 Removal of the Pitot Probe (9DA1, 9DA2, 9DA3)
  • AMM 34-11-15-200-801 Inspection/Check of the Pitot Probe (9DA1, 9DA2, 9DA3)
  • AMM 34-11-15-400-801 Installation of the Pitot Probe (9DA1, 9DA2, 9DA3)

3. Fault Confirmation

• A. Test
  • (1)Not applicable, you cannot confirm this fault on the ground.

4. Fault Isolation

• A. If the crew made a report that the F/CTL ALTN LAW or F/CTL DIRECT LAW warning was shown on the EWD for some seconds only:
  • - no trouble shooting is necessary.
• B. If the F/CTL ALTN LAW or F/CTL DIRECT LAW warning is shown and stays on during the flight:
  • (1)Do the inspection of the pitot probe (9DA1, 9DA2, 9DA3)
    AMM TASK 34-11-15-200-801
  • replace the defective pitot probe (9DA1 or 9DA2 or 9DA3)
    AMM TASK 34-11-15-000-801 and AMM TASK 34-11-15-400-801