# SDR JJBA20230217012

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 15, 2023
- Submitted: February 17, 2023
- Operation: Air carrier
- Aircraft: [N11193](https://openairdocs.org/aircraft/N11193), registered now
- Make and model: Emb EMB-145XR
- Registry model: [EMB EMB-145XR](https://openairdocs.org/model/embraer-emb-145xr) (OpenAirDocs)
- Aircraft serial: 14500938
- Aircraft time: 38,658 hours, 26,155 cycles
- System (JASC): [2500 · Cabin Equipment/Furnishings](https://openairdocs.org/jasc/2500)
- Part: None
- Condition: None
- Stage of operation: NR
- How discovered: V
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/JJBA20230217012

## Discrepancy

SMOKE COMING FROM SINK IN THE LAV ELECTRICAL BURNING SMELL. FOUND BOTH POT WATER DRAIN HEATERS WORKING NORMALLY. SUSPECT SINK DRAIN HEATER OR ASSOCIATED WIRING. PULLED AND COLLARED CB E-11. INSPECTED WIRING BEHIND AND UNDER LAV SINK COMPARTMENT AND FOUND SMELL FROM CALL SWITCH CIRCUIT BOARD. REMOVED AND REPLACED LAV ATTEND CALL SWITCH CIRCUIT BOARD. OPS CHECK SAT.

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