# SDR CALA2025122412422

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 21, 2025
- Submitted: December 24, 2025
- Operation: Air carrier
- Aircraft: [N2639U](https://openairdocs.org/aircraft/N2639U), registered now
- Make and model: Boeing 777-300ER
- Registry model: [Boeing 777-300ER](https://openairdocs.org/model/boeing-777-300er) (OpenAirDocs)
- Aircraft serial: 62650
- Aircraft time: 37,339 hours, 4,097 cycles
- System (JASC): [3830 · Waste Disposal System](https://openairdocs.org/jasc/3830)
- Part: Toilet
- Condition: Malfunctioned
- Location: Zone 900
- 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/CALA2025122412422

## Discrepancy

45 MIN INTO FLT WASTE TANK 2 SHOWS FULL & ASSOC LAVS WONT FLUSH.  AFTER SERVICED, WASTE TANKS, OPS CHKD & FOUND LAV B INOP.  DOOR 1L LAV B TOILET WON'T FLUSH.  ACCOMPLISHED LAV B OPS TEST IAW AMM 38-32-00-700-802, TOILET FLUSHED NORMALLY MULTIPLE TIMES. OK FOR SERVICE, REVERSED MEL

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