# Incident 20240410002709I: Airbus A321-271NX, April 10, 2024

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: April 10, 2024, 10:45 local time
- Damage: No damage
- Phase of flight: Cruise/Level Flight
- Operating rules: Air carrier (Part 121)
- Operator: YENA
- Aircraft: N4048J, registered now (https://openairdocs.org/aircraft/N4048J) (OpenAirDocs)
- Registry model: Airbus A321-271NX (registry code 3930915, https://openairdocs.org/model/airbus-a321-271nx) (OpenAirDocs)
- Registry engine: IAE PW1133G-JM (registry code 34600, https://openairdocs.org/engine/iae-pw1133g-jm) (OpenAirDocs)
- Reported make and model: AIRBUS A321-271NX
- Reported engine: IAE PW1133G-JM
- People aboard: 0
- Fatal injuries: 0
- Other injuries: 0
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20240410002709I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

PRIOR TO ENTERING NAT BOTH FMGCS STARTED GIVING WRONG INFORMATION ALL LAT/ LONGS WERE TRIPLE CHECKED.  DISTANCE INFORMATION CHANGED FROM 2000 MILES TO OVER 7000 MILES WITH MULTIPLE STEPS IN BETWEEN.  AN AIR TURNBACK WAS CONDUCTED TO DUBLIN AIRPORT.  FLIGHT OPS ALERT, 2024-ALERT-F001, ISSUED FOR A320/321 FMGC ANOMALOUS BEHAVIOR.  THESE ERRORS OCCUR WHEN A COPY ACTIVE IS INITIALLY PERFORMED, FOLLOWED BY A CHANGE OF DESTINATION IN THE SECONDARY FLIGHT PLAN

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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