# SDR AALA202309056709

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 3, 2023
- Submitted: September 5, 2023
- Operation: Air carrier
- Aircraft: [N821AN](https://openairdocs.org/aircraft/N821AN), registered now
- Make and model: Boeing 787-9
- Registry model: [Boeing 787-9](https://openairdocs.org/model/boeing-787-9) (OpenAirDocs)
- Aircraft serial: 40640
- Aircraft time: 26,091 hours, 3,149 cycles
- System (JASC): [2560 · Emergency Equipment](https://openairdocs.org/jasc/2560)
- Part: Concentrator
- Part number: 679Z60113409
- Condition: Inoperative
- Location: Zone 200 - Fuse
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202309056709

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: L4/R4 FLIGHT ATTENDANT PANEL EMERGENCY EVACUATION SIGNAL SYSTEM INOPERATIVE. REPLACED REMOTE DATA CONCENTRATOR (RDC-19). PER AMM 42-21-07.

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