# SDR YENA2021101100671

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 9, 2021
- Submitted: October 11, 2021
- Operation: Air carrier
- Aircraft: [N934JB](https://openairdocs.org/aircraft/N934JB), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 06130
- Aircraft time: 28,739 hours, 5,551 cycles
- System (JASC): [2750 · Trailing Edge Flap Control System](https://openairdocs.org/jasc/2750)
- Part: Control Unit
- Condition: Faulted
- Location: Te Flaps
- Stage of operation: CL
- How discovered: O
- Nature of condition: J, F
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2021101100671

## Discrepancy

FLT 787, AIR RETURN BACK.  F/CTL FLAP SYS 1 FAULT.   R & R FLAP CONTROL UNIT 23CV VALVE BLOCK REF AMM 27-54-53 OPS CHECKED GOOD.

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