# SDR UALA2009091602931

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 16, 2009
- Submitted: September 17, 2009
- Operation: Air carrier
- Aircraft: N419UA
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 487
- Aircraft time: 51,908 hours, 18,937 cycles
- Engine: Iae V2527A5
- System (JASC): [3412 · Outside Air Temperature Indicator/Sensor](https://openairdocs.org/jasc/3412)
- Part: Probe
- Condition: Malfunctioned
- Location: Tat
- Stage of operation: AP
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2009091602931

## Discrepancy

AC ABRUPTLY PITCHED DOWN ON APPROACH TO DIA ON AP2, 1500 FT ALT AC PITCHED NOSE DOWN APPROX 5 DEG, 2300 FT PER MIN DESCENT RATE.  DISCONNECTED AP AND LANDED NORMALLY.  ITEM HAS HISTORY WHICH SHOWS PHC 1 REPLACED.  PFR SHOWED THE INTERMITTANT ECAM WITH FAILURE MSG "CHECK TAT PHC1 SUPPLY".  NEEDS MORE T/S.  REPLACED CAPT'S TAT PROBE.  CYC FMGC CB.  ACP AUTO LAND TEST.  OPS CHECKS OKAY.

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