# SDR YENA2023063000750

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 27, 2023
- Submitted: June 30, 2023
- Operation: Air carrier
- Aircraft: [N4058J](https://openairdocs.org/aircraft/N4058J), registered now
- Make and model: Airbus A321-271N
- Registry model: [Airbus A321-271N](https://openairdocs.org/model/airbus-a321-271n) (OpenAirDocs)
- Aircraft serial: 10619
- Aircraft time: 6,361 hours, 947 cycles
- System (JASC): [4930 · APU Engine Fuel and Control](https://openairdocs.org/jasc/4930)
- Part: Pump
- Part number: C12CB0013
- Part serial: 11234
- Condition: Failed
- Location: Apu
- Part time: 6,388 hours, 951 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2023063000750

## Discrepancy

FLT#020, LHR-JFK. (ETOPS) 'APU CLASS II MX MESSAGE ON ECAM STATUS PAGE. ( CLASS II MAINTENANCE MESSAGES DISPLAYED ); REMOVED AND REPLACED APU FUEL PUMP 4QC PER AMM 28-22-51. THE OPS CHECK IS GOOD. MDDR CLEARED. MX-4 UPDATED, PLACARD REMOVED. REPLACED RELAY 9QC PER ESPM 20-46-50.'

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