# SDR QXEA2026072800169

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 24, 2026
- Submitted: July 29, 2026
- Operation: Air carrier
- Aircraft: [N643QX](https://openairdocs.org/aircraft/N643QX), registered now
- Make and model: Emb ERJ 170-200 LR
- Registry model: [EMB ERJ 170-200 LR](https://openairdocs.org/model/embraer-s-a-erj-170-200-lr) (OpenAirDocs)
- Aircraft serial: 17000763
- Aircraft time: 20,159 hours, 14,290 cycles
- System (JASC): [2211 · Autopilot Computer](https://openairdocs.org/jasc/2211)
- Part: Mau
- Condition: Faulted
- Location: Zone 200
- Part time: 7,577 hours, 6,161 cycles
- Stage of operation: AP
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QXEA2026072800169

## Discrepancy

FLIGHT 2107. ON THRUST REDUCTION FOR LANDING AT APPROX 30 FEET A.G.L. AIRCRAFT STARTED AN UNCOMMANDED ROLL TO THE LEFT. NO SIGNIFICANT CROSSWIND WAS PRESENT DURING LANDING & FLARE. LANDING UNEVENTFUL. REMOVED FROM SERVICE INTERROGATED CMC FOUND FC 32530104NWS, 22310001TA1, 22310001TA2.  PREFORMED FHDB DOWNLAOD, DVDR DOWNLOAD AND FREEDOM OF MOVEMENT CHECK. T/S FAULT CODE 22310001TA2. FAULT NOT ACTIVE ON ARRIVAL. PER E175 FIM 22-31-00-810-848-+A, PROBALE CUSES, REMOVED AND REPLACED AIOP 2A MODULE MAU2 ( SLOT 13/14) AS A PRECAUTIONARY MEASURE. OPERATIONAL SOFTWARE TARGET LOAD COMPLETE. OPS TEST OF THE AIOP MODULES- GOOD. IAW E175 AMM 31-41-10-000-801-A, AMM 31-41-10-400-801-A, AMM 45-45-000-470-801-A AND AMM 31-41-10-710-801-A. DETERMINED FAULT CODE: 3250104NWS TO BE RELATED TO NWS ANDD NOT CORRELATED TO REPORTED DEFECT. NO MAINTENANCE ACTION TAKEN PER GPM 7.2.12.3.  AS A PRECAUTIONARY MESURE REPLACED THROTTLE QUADRANT  RETURNED TO SERVICE.

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