# SDR DALA2020011500316

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 12, 2020
- Submitted: January 15, 2020
- Operation: Air carrier
- Aircraft: [N861DN](https://openairdocs.org/aircraft/N861DN), registered now
- Make and model: Boeing 737932ER
- Aircraft serial: 31973
- Aircraft time: 12,293 hours, 4,509 cycles
- System (JASC): [3412 · Outside Air Temperature Indicator/Sensor](https://openairdocs.org/jasc/3412)
- Part: Probe
- Condition: Failed
- Location: Tat
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2020011500316

## Discrepancy

SHIP 3861 -DIV- TO MCO DUE BOTH AUTOPILOTS DISCONNECTED, NO AUTO THROTTLE AND TAT PROBE MESSAGE. CORRECTIVE ACTION: PERFORMED ADIRS BITE CHECK. BOTH ADIRU FAILED TAT PROBE. REPLACED TAT PROBE PER AMM. OPS CHECKS GOOD.

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