# SDR USAA2011081600049

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 13, 2011
- Submitted: August 16, 2011
- Operation: Air carrier
- Aircraft: [N539UW](https://openairdocs.org/aircraft/N539UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 4082
- Aircraft time: 6,280 hours, 2,349 cycles
- System (JASC): [2565 · Escape Slide](https://openairdocs.org/jasc/2565)
- Part: Decoder
- Part number: Z043H000351A
- Part serial: 043H00013339
- Condition: Defective
- Location: Zone 200
- Part time: 6,302 hours, 2,356 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2011081600049

## Discrepancy

DOOR 4L SLIDE CAUTION LIGHT ILLUMINATED IN FLIGHT DUE TO LOW SLIDE BOTTLE PRESSURE.  MAINTENANCE REMOVED AND REPLACED DECODER / ENCODER UNIT 300RH8 IAW AIRBUS MAINTENANCE MANUAL 23-73-47-000-001 AND 23-73-47-400-001.

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