# SDR ASAA2023110246024

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 2, 2023
- Submitted: November 7, 2023
- Operation: Air carrier
- Aircraft: [N453AS](https://openairdocs.org/aircraft/N453AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36354
- Aircraft time: 36,600 hours, 11,540 cycles
- System (JASC): [3830 · Waste Disposal System](https://openairdocs.org/jasc/3830)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023110246024

## Discrepancy

LAV WASTE SHOWED FULL AFTER LEVEL OFF IN CRUISE. NO TOILETS WOULD FLUSH. GROUNDED - YES. DIVERSION - PERFORMED WASTE TANK CONTINUOUS LEVEL SENSOR CLEANING PER AMM 38-33-02. INSPECTED BALL VALVE LINKAGE ASSEMBLY AND PROXIMITY SWITCH WITH NO DEFECTS NOTED. VERIFIED WASTE TANK EMPTY. ACCOMPLISHED LAV INOP BITE PER AMM 38-33-00 WITH NO FAULTS FOUND. ALL LAVATORY TOILETS OPS NORMALREF AMM 38-32-01. AIRCRAFT OKAY FOR SERVICE. SEAMC STEVE NOTIFIED.C# AP 4043953.

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