# SDR CALA2018081731790

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 13, 2018
- Submitted: August 17, 2018
- Operation: Air carrier
- Aircraft: [N454UA](https://openairdocs.org/aircraft/N454UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1104
- Aircraft time: 63,167 hours, 24,870 cycles
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Relay
- Part number: E024528A0
- Condition: Inoperative
- Location: Door Warning
- 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/CALA2018081731790

## Discrepancy

DOOR WARNING FAILED STEP 8, CLOSED CIRCUIT BREAKER P11 AND OPEN CIRCUIT BREAKER P10 OF THE DOOR WARNING CARD.   REMOVED AND REPLACED THE RELAY 12WN IAW ESPM 20-46-50,  FOUND FAULTY WHEN TROUBLESHOT IAW TSM 52-11-00.  AFFIRMED THE OPS TEST OF THE DOOR WARNING IAW AMM 52-71-00, AND TESTED NORMAL.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.