# SDR FXTA20250815001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 13, 2025
- Submitted: August 15, 2025
- Operation: Air carrier
- Aircraft: [N190BA](https://openairdocs.org/aircraft/N190BA), registered now
- Make and model: Cessna 208B
- Registry model: [Cessna 208B](https://openairdocs.org/model/cessna-208b) (OpenAirDocs)
- Aircraft serial: 208B5611
- Aircraft time: 5,072 hours, 10,505 cycles
- System (JASC): [3400 · Navigation System](https://openairdocs.org/jasc/3400)
- Part: Ahrs
- Condition: Faulted
- Location: Zone 200
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FXTA20250815001

## Discrepancy

AHRS #1 & 2 FAILED, HEADING RED "X", LOSE OF SYNTHETIC VISION; GRS #1 S/N: 45T003846, GRS #3 S/N: 45T003702, GMU #1 1CM0333444. GMU #2 S/N: 1CM033471, REMOVED, INSPECTED, REINSTALLED. AHRS SYSTEM POST-MX CHECK PERFORMED. AHRS ADJUSTMENT/TEST, PITCH/ROLL OFFSET CALIBRATION, MAGNETOMETER CALIBRATION, HEADING OFFSET CALIBRATION PERFORMED. OPS CHECKED GOOD.

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