# SDR ASAA2021042934727

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 29, 2021
- Submitted: May 3, 2021
- Operation: Air carrier
- Aircraft: [N516AS](https://openairdocs.org/aircraft/N516AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 39044
- Aircraft time: 44,993 hours, 13,523 cycles
- System (JASC): [3810 · Potable Water System](https://openairdocs.org/jasc/3810)
- Part: Control Cable
- Part number: 575206221
- Condition: Broken
- Location: Water Tank Vlv
- Stage of operation: CL
- How discovered: V
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021042934727

## Discrepancy

ON CLIMBOUT, FA REPORTED NO WATER PRESSURE IN ANY OF THE LAVATORY SINKS OR TOILETS. GROUNDED - YES. DIVERSION TIME 29 MINUTES - FOUND WATER TANK FILL VALVE LOOSE AND ALLOWING FILL VALVE TO LOOSE PRESSURE (SUSPECT BAD VALVE CONTROL CABLE). REMOVED AND REPLACED FILL/OVERFLOW VALVE CONTROL CABLE, REF B737-800 AMM 38-11-03-000-802 AND 38-11-03-400-802.  NO EVIDENCE OF LEAKS DETECTED IN ALL AREAS ACCESSED.

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