# SDR YENA2025081400839

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 13, 2025
- Submitted: August 14, 2025
- Operation: Air carrier
- Aircraft: [N4073J](https://openairdocs.org/aircraft/N4073J), registered now
- Make and model: Airbus A321-271NX
- Registry model: [Airbus A321-271NX](https://openairdocs.org/model/airbus-s-a-s-a321-271nx) (OpenAirDocs)
- Aircraft serial: 11129
- Aircraft time: 9,973 hours, 1,479 cycles
- System (JASC): [7600 · Engine Controls](https://openairdocs.org/jasc/7600)
- Part: Interface Unit
- Part number: 77746111
- Part serial: 777461IN05419
- Condition: Faulted
- Part time: 9,973 hours, 1,479 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2025081400839

## Discrepancy

FLT#1908, CDG-JFK. (ETOPS) "ENG SOFT FAULT ON TOGA TAKEOFF. A/THR KICKED OFF AS WELL BUT WAS ABLE TO RESET USING A/THR PUSH BUTTON ON THRUST LEVERS. ( LOST A/THR AFAIN ON APPROACH); TROUBLESHOT ENGINE SOFT FAULT AND AUTO THROTTLE FAULT PER TSM 78.00.810.808.A  AND TSM 22.31.00.810.816.A  PERFORMED FADEC AND VI OPS TEST PER AMM 73-21-00,73-25-34. NO CORRELATED FAULT FOUND. REMOVED AND REPLACED EIU #2 AS PRECAUTION PER AMM 73-25-34 NO FAULTS OCCUR DURING OPS CHECK PER ENGINE RUN. OPS CHECK GOOD AT THIS TIME. AIRCRAFT SYSTEM NORMAL."

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