# SDR DALA2025012400603

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 23, 2025
- Submitted: January 24, 2025
- Operation: Air carrier
- Aircraft: [N120DU](https://openairdocs.org/aircraft/N120DU), registered now
- Make and model: Airbus BD-500-1A10
- Registry model: [Airbus BD-500-1A10](https://openairdocs.org/model/airbus-canada-ltd-ptnrsp-bd-500-1a10) (OpenAirDocs)
- Aircraft serial: 50039
- Aircraft time: 14,372 hours, 6,645 cycles
- System (JASC): [2720 · Rudder Control System](https://openairdocs.org/jasc/2720)
- Part: Reu
- Condition: Faulted
- Location: Zone 300
- Stage of operation: CR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2025012400603

## Discrepancy

SHIP 8120 - DIV - TO PHL DUE TO INTERMITTENT "27 FLT CTRL FAULT PRIM REU INOP" MESSAGE FOLLOWED BY "RUDDER FAIL" MESSAGE. CORRECTIVE ACTION: CLEARED THE LATCHED FAULT FROM PRIMARY FLIGHT CONTROL COMPUTER (PFCC), REPLACED AFT REMOTE ELECTRONICS UNIT (REU) 1, PERFORMED REU OPERATIONAL TEST, FLIGHT CONTROL RIGGING AND SYSTEM TESTS. (LP# 6385251, 6385248)

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