# SDR NACA2025010500001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 5, 2025
- Submitted: January 10, 2025
- Operation: Air carrier
- Aircraft: N565NC
- Make and model: Boeing 767-3BG
- Registry model: [Boeing 767-3BG](https://openairdocs.org/model/boeing-767-3bg) (OpenAirDocs)
- Aircraft serial: 30565
- Aircraft time: 79,783 hours, 18,492 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Exhaust Valve
- Part serial: 826
- Condition: Failed
- Location: Zone 100
- Stage of operation: NR
- 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/NACA2025010500001

## Discrepancy

FWD EQPT VAL EICAS MSG AT FL 400. MESSAGE STAYS WHEN EQUIP COOLING TO STBY, PRESSURIZATION NORMAL. REMOVED AND REPLACED OVERBOARD EXHAUST VALVE IAW AMM 21-58-05

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