# SDR AALA202405143917

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 13, 2024
- Submitted: May 14, 2024
- Operation: Air carrier
- Aircraft: [N802NN](https://openairdocs.org/aircraft/N802NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31073
- Aircraft time: 43,284 hours, 18,240 cycles
- System (JASC): [3421 · Attitude Gyro and Indicating System](https://openairdocs.org/jasc/3421)
- Part: Tat Probe
- Part number: 102LA2AG
- Part serial: B92653
- Condition: Faulty
- Location: Zone 200 - Fuse
- Part time: 1,482 hours, 687 cycles
- Stage of operation: CL
- How discovered: V
- Nature of condition: G
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202405143917

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: AUTO PILOT HORN SOUNDED, FLIGHT DIRECTORS FAILED, AUTOTHROTTLES FAILED, AND AUTO TILT FAILED APPEARED ON THE RADAR; AIRCRAFT DIVERTED TO AND LANDED SAFELY AT DFW. REPLACED TAT PROBE. ADIRU'S BITE CHECK GOOD. PER MM 34-21-06.

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