Overview
- Airbus said by Monday morning the vast majority of affected A320‑family jets had been reverted to a prior software version, a process that typically took two to three hours per aircraft.
- An emergency directive required operators to ground aircraft until modified, leading to brief sidelining across fleets as airlines performed overnight updates to restore service.
- The fleetwide action followed a 30 October JetBlue A320 event involving an uncommanded loss of altitude that injured passengers and led authorities to require remediation before the next flight.
- Airbus pointed to solar‑induced particle streams as a possible factor that can corrupt data in ELAC flight‑control computers supplied by Thales, while investigations continue.
- Operational impact was limited overall, though ANA canceled 95 flights affecting 13,500 travelers and JetBlue cut dozens of services, as Airbus shares fell sharply and the company disclosed a separate, limited quality issue with some A320 metal fuselage parts in production.