# SDR 2006UALA02028

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 22, 2006
- Submitted: October 31, 2006
- Operation: Air carrier
- Aircraft: [N817UA](https://openairdocs.org/aircraft/N817UA), registered now
- Make and model: Airbus A319-131
- Registry model: [Airbus A319-131](https://openairdocs.org/model/airbus-industrie-a319-131) (OpenAirDocs)
- Aircraft serial: 873
- Aircraft time: 28,463 hours, 10,908 cycles
- Engine: Iae V2522A5
- System (JASC): [3150 · Central Warning](https://openairdocs.org/jasc/3150)
- Part: Warning Message
- Condition: Illuminated
- Location: Cockpit
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2006UALA02028

## Discrepancy

CREW RECEIVED FLIGHT CONTROL ALTERNATE LAW MESSAGE.    TESTED NR 1, 2, AND 3 ADIRU'S-ALL THREE TESTED OK.  FOUND PARTIAL OBSTRUCTION OF NR 1 AND 3 PITOT PROBES.   REPLACED NR 1 PITOT PROBE, 9DA1.  FAC-1 ALSO SHOWED FAILURE MESSAGES.  REPLACED FAC-1.  TESTED OK.  CAT III TESTED OK.

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