# SDR AALA202412059631

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 4, 2024
- Submitted: December 5, 2024
- Operation: Air carrier
- Aircraft: [N794AN](https://openairdocs.org/aircraft/N794AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 30256
- Aircraft time: 91,882 hours, 11,979 cycles
- System (JASC): [3810 · Potable Water System](https://openairdocs.org/jasc/3810)
- Part: Valve
- Condition: Leaking
- Location: Zone 100
- 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/AALA202412059631

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: LAVATORYS AND GALLEYS HAD NO WATER; AIRCRAFT DIVERTED TO AND LAND LANDED SAFELY AT JFK. FOUND FILL-OVERFLOW VALVE LEAKING AIR PRESSURE. REMOVED AND REPLACED FILL OVERFLOW VALVE. PER AMM 38-11-04. ALL OPERTIONAL CHECKS GOOD.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.