# SDR DALA2021032901871

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 26, 2021
- Submitted: March 29, 2021
- Operation: Air carrier
- Aircraft: [N512DN](https://openairdocs.org/aircraft/N512DN), registered now
- Make and model: Airbus A350-941
- Registry model: [Airbus A350-941](https://openairdocs.org/model/airbus-a350-941) (OpenAirDocs)
- Aircraft serial: 0267
- Aircraft time: 9,224 hours, 852 cycles
- System (JASC): [2497 · Electrical Power System Wiring](https://openairdocs.org/jasc/2497)
- Part: Monitoring Unit
- Condition: Odor
- Location: Nr 1a
- Stage of operation: CR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2021032901871

## Discrepancy

SHIP 3512 -DIV- DUE TO ELECTRICAL ODOR ALONG WITH ELECTRICAL DISTRIBUTION SYSTEM FAULTS. CORRECTIVE ACTION: REPLACED ELECTRICAL DISTRIBUTION MONITORING UNIT 1A (EDMU-1A) DUE TO CREW REPORTS OF AMBER X DISPLAYED ON ATU OUTPUT TO AC1A/AC1B AND INSPECTED AUTO TRANSFORMER UNITS (ATU) FOR SIGNS OF OVERHEATING WITH NO TROUBLE FOUND. PERFORMED LIGHTNING STRIKE INSPECTION WITH NO FINDINGS. REPLACED CIDS 2.

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