# SDR AALA201802209033

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 16, 2018
- Submitted: March 29, 2018
- Operation: Air carrier
- Aircraft: [N817AN](https://openairdocs.org/aircraft/N817AN), registered now
- Make and model: Boeing 787-8
- Registry model: [Boeing 787-8](https://openairdocs.org/model/boeing-787-8) (OpenAirDocs)
- Aircraft serial: 40635
- Aircraft time: 4,623 hours, 473 cycles
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Concentrator
- Condition: Faulted
- Location: Door
- 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/AALA201802209033

## Discrepancy

AHM ALERT, DOOR L2-3 CCS RDC 05 CAN RESPONSE FROM THE L3 DOOR EMERGENCY LIGHT SYS PRIME CONTROL ON CAN BUSS 4 IS NOT RECEIVED. WITH FAULT CODE 42-02164.   PERFORMED LRU REPLACEMENT TEST CROWN DOOR 3-2L CCS REMOTE DATA CONCENTRATOR 05.  OPERATIONS CHECK NORMAL, NO EICAS MESSAGES IAW MM 42-21-07.

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