# SDR QXEA2024100300226

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 29, 2024
- Submitted: October 3, 2024
- Operation: Air carrier
- Aircraft: [N638QX](https://openairdocs.org/aircraft/N638QX), 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: 17000757
- Aircraft time: 15,423 hours, 10,371 cycles
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Outflow Valve
- Part number: 2142501
- Part serial: 18113067
- Condition: Malfunctioned
- Location: Zone 100
- Part time: 15,437 hours, 10,380 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QXEA2024100300226

## Discrepancy

FLIGHT 2002. PRESN AUTO FAULT ADVISORY MESSAGE DISPLAYED ON EICAS.  ELECTED TO RETURN TO THE FIELD AND ACCOMPLISHED A UNEVENTFUL LANDING. PLACED ON MEL 21-31-01A. RETURNED TO SERVICE. MEL CLEARED 10/01. DUE TO RECENT A/C HISTORY FOR FAULT CODE 21311009CPC BEING FOUND TRANSITORY, REPLACED OUTFLOW VALVE REF FIM TASK 21-31-00-81-819-A STEPS 6 K-L. OPS TEST GOOD. PLACARDS REMOVED. CLEAR MEL. RETURNED TO SERVICE.

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