# SDR SWIA200311747

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 26, 2003
- Submitted: January 31, 2003
- Operation: Air carrier
- Aircraft: N221SW
- Make and model: Emb EMB-120ER
- Registry model: [EMB EMB-120ER](https://openairdocs.org/model/embraer-emb-120er) (OpenAirDocs)
- Aircraft serial: 120290
- Aircraft time: 21,075 hours, 29,757 cycles
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Apu
- Part number: 38003761
- Condition: Smoke
- Stage of operation: TX
- How discovered: 9
- Nature of condition: B, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWIA200311747

## Discrepancy

APU BLEED CAUSES LAVATORY SMOKE DETECTOR TO GO OFF.  REMOVED AND REPLACED APU IAW EMB 120 MM 49-00-02.  S/N  OFF P-456.

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