# SDR AALA201909259036

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 22, 2019
- Submitted: September 25, 2019
- Operation: Air carrier
- Aircraft: [N546UW](https://openairdocs.org/aircraft/N546UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 4885
- Aircraft time: 28,425 hours, 10,616 cycles
- System (JASC): [4930 · APU Engine Fuel and Control](https://openairdocs.org/jasc/4930)
- Part: Fuel Control
- Part number: 4419215
- Part serial: CUC15070
- Condition: Unreliable
- Location: Apu
- Part time: 32,076 hours, 14,124 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201909259036

## Discrepancy

AIRCRAFT WAS GROUNDED: FLIGHT AIR RETURNED TO CLT ON ACCOUNT OF N1 GENERATOR FAULT AND APU FAIL INDICATION. AN EMERGENCY WAS DECLARED. MAINTENANCE REMOVED AND REPLACED ENG #1 IDG IAW AMM 24-21-51. OPS AND LEAK CHECK GOOD. REMOVED AND REPLACED FCU IAW AMM 49-23-11 AND REMOVED AND REPLACED LUBE OIL MODULE IAW AMM 49-91-45. OPS AND LEAK CHECK GOOD. (SEE SDR # AALA201909239043, AALA201909259037)

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