# SDR I5PA2022121588802

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 15, 2022
- Submitted: December 20, 2022
- Operation: Air carrier
- Aircraft: [N888LT](https://openairdocs.org/aircraft/N888LT), registered now
- Make and model: Boeing 757230
- Aircraft serial: 25441
- Aircraft time: 78,577 hours, 25,291 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Exhaust Valve
- Part number: 566918
- Part serial: 5212
- Condition: Inoperative
- Location: Zone 821
- Stage of operation: CR
- How discovered: O
- Nature of condition: S
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/I5PA2022121588802

## Discrepancy

FLT. NO. MGE N888LT. ESI AND EVENT- AIR RETURN DUE TO CABIN ALT WARNING FOUND DAMAGED E/E EXHAUST VALVE STUCK OPEN. R/R E/E EXHAUST VALVE. ACFT RETURNED TO SERVICE.

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