# SDR CALA2026012313187

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 20, 2026
- Submitted: January 23, 2026
- Operation: Air carrier
- Aircraft: [N17337](https://openairdocs.org/aircraft/N17337), registered now
- Make and model: Boeing 737-8
- Registry model: [Boeing 737-8](https://openairdocs.org/model/boeing-737-8) (OpenAirDocs)
- Aircraft serial: 67593
- Aircraft time: 7,523 hours, 2,542 cycles
- System (JASC): [3810 · Potable Water System](https://openairdocs.org/jasc/3810)
- Part: Filter
- Part number: 155200219
- Part serial: R003003473
- Condition: Faulted
- Location: Zone 900
- Part time: 7,505 hours, 2,537 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026012313187

## Discrepancy

IN FLIGHT FA REPORTED NO H2O PRESS IN LAVS AND GA LLEYS. REPEAT GRIPE. VERIFIED WATER ON AND WORKING NORMALLY ON GROUND AFTER BLEEDING SOME AIR. CREW REPORTS THAT THERE IS NO WATER IN FLIGHT. SUSPECT PRESSURE REGULATOR ON PNEUMATIC PRESSURIZATION SIDE. REPLACED BLEED AIR FILTER PER AMM 38-42-10 AND BOTH COMPRESSOR SUPPLY CHECK VALVES PER A.M.M. 38-42-09 AS PRECAUTION. REPLACED WATER PRESSURE REGULATOR PER AMM 38-42-08-000-801 AND AMM 38-42-08-400-801. ALL OPS AND LEAK CHECKS GOOD. BLED LAV AND GALLEY WATER FAUCETS. NO FURTHER FAULTS FOUND.

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