# SDR ASAA2021112436727

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 24, 2021
- Submitted: November 30, 2021
- Operation: Air carrier
- Aircraft: [N590AS](https://openairdocs.org/aircraft/N590AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35687
- Aircraft time: 50,579 hours, 15,088 cycles
- System (JASC): [3030 · Pitot/Static Anti-Ice System](https://openairdocs.org/jasc/3030)
- Part: Tat Probe
- Part number: 102AH2AG
- Condition: Inoperative
- Location: L Fwd Fuselage
- Stage of operation: CR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021112436727

## Discrepancy

TEMP PROBE MASTER CAUTION OCCURRED AT CRUISE ALTITUDE. GROUNDED - YES. PERFORMED B737-800 FIM 30-31 TASK 810 A THROUGH E NO HELP. FAULT LIGHT REMAINS ON, DEFECTS REMAINS OPEN. REMOVED AND REPLACED TOTAL AIR TEMPERATURE PROBE PER B737-800 AMM 34-21-06 PB 401. OPS CHECK GOOD.

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