# SDR AALA202205255914

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 24, 2022
- Submitted: May 25, 2022
- Operation: Air carrier
- Aircraft: [N186US](https://openairdocs.org/aircraft/N186US), registered now
- Make and model: Airbus A300*
- Aircraft serial: 1701
- Aircraft time: 66,390 hours, 25,234 cycles
- System (JASC): [2560 · Emergency Equipment](https://openairdocs.org/jasc/2560)
- Part: Deu
- Part number: Z040H000820A
- Part serial: 40H00011376
- Condition: False Activation
- Location: Zone 100 - Fuse
- Part time: 66,390 hours, 25,234 cycles
- Stage of operation: TX
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202205255914

## Discrepancy

AIRCRAFT WAS GROUNDED: UN-COMMANDED EVACUATION WARNING AND HORN ACTIVATED ON TAXI IN TO GATE. REPLACED DECODER ENCODER UNIT B (DEU) AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 23-73-47.

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