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Airbus A321neos Will Need 9-Day Fix Within 2 Years

Simple Flying reports the jets are safe to fly now, but each one will sit in a hangar for nine days within two years.

VanderWolf Images | Shutterstock, Simple Flying

Simple Flying reports that Airbus is delivering A321neo jets with a known defect, and airlines are accepting them anyway. The aircraft, worth more than $130 million each, come with a requirement: within two years of entering service, each one must be pulled from revenue service for a nine-day structural repair.

The problem is an inadequate layer of anti-corrosion primer on the longitudinal structural stringers in the lower forward fuselage. Simple Flying says the defect was traced to TESI, an Italian sub-tier supplier working for Leonardo. Airbus has described the issue as a durability concern, not an immediate safety-of-flight risk, and says the structure remains sound during initial operations.

About 500 A321neos are affected, according to Simple Flying. Roughly 250 are already flying, including jets at Delta Air Lines, IndiGo and Wizz Air. Another 250 are in various stages of assembly. The repair itself takes two to three days of primer work, but stripping insulation and reaching the lower forward bilge pushes the total grounding time to nine days per aircraft.

Airlines normally wait for the four-year heavy maintenance check to do non-critical structural work. The two-year compliance window changes that. It forces carriers to pull aircraft out of service early and schedule standalone maintenance visits, which creates headaches for fleets already running at full capacity.

So why accept the jets? Simple Flying points to Airbus's order backlog of more than 9,200 aircraft. Delivery slots are nearly impossible to replace before the end of the decade, so refusing an A321neo would mean losing a slot and leaving routes unserved. Instead, airlines are taking the planes now, flying them for two years, and letting Airbus cover the repair cost plus provide future maintenance credits.

For travellers, the takeaway is not to avoid these planes. The defect is a long-term quality issue, not a reason to cancel a flight. But the nine-day groundings could cause schedule changes over the next two years, especially if you fly Delta, IndiGo or Wizz Air.

What to do now: keep an eye on your schedule notifications and build in a little flexibility if your flight is on an A321neo. The plane is safe to fly, but its hangar visit is already on the calendar.

  • A321neo
  • Airbus
  • aircraft maintenance
  • Delta Air Lines
  • IndiGo
  • Wizz Air

About Grace Whitaker

Grace Whitaker is the lead writer for Travel, covering airline, hotel and airport policy changes. She joined in 2026 after 15 years at a major US airline, first as a gate agent at Denver International Airport and later as an airport operations supervisor. She is based in Denver.