# SDR CALA2025120211627

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 28, 2025
- Submitted: December 2, 2025
- Operation: Air carrier
- Aircraft: [N17344](https://openairdocs.org/aircraft/N17344), registered now
- Make and model: Boeing 737-8
- Registry model: [Boeing 737-8](https://openairdocs.org/model/boeing-737-8) (OpenAirDocs)
- Aircraft serial: 67622
- Aircraft time: 4,736 hours, 1,619 cycles
- System (JASC): [3820 · Wash Water System](https://openairdocs.org/jasc/3820)
- Part: Indicator
- Condition: Stuck
- Location: Zone 900
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2025120211627

## Discrepancy

LAV/WATER INDICATOR APPEARS STUCK ON EMPTY/ FULL FOR ENTIRE FLT VERY BAD LAV ODOR PLACING ON MEL TOMC APPROVED CW DDP. PLACED ON MEL. *DM* RECOMMEND LOGIC CONTROL MODULE OPERATIONAL TEST, REF AMM TASK 38-33-03-710-801, IF UNABLE TO RESOLVE, PLS UPDATE W/ FINDINGS. PERFORMED AUTO ZERO TEST REF AMM 38-33-00-710-801. OPS CHECK GOOD. OK TO CONTINUE.

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