Airbus has asked several operators of its A330neo aircraft to conduct additional inspections during routine maintenance. These checks are aimed at ensuring that no tools or foreign objects are present inside the horizontal stabilizer — a key part of the aircraft's structure — following an incident during production that slowed deliveries of the long-haul aircraft earlier this year. The European manufacturer has informed certain A330neo operators to inspect their aircraft during upcoming maintenance visits. According to Bloomberg, the campaign involves a specific number of aircraft built between 2021 and July 2026, though the exact number of units or the airlines involved have not been disclosed. The initiative began after a tool was discovered inside the horizontal stabilizer — also known as the adjustable horizontal plane — of an A330neo still in production. In the aerospace industry, such forgotten items are referred to as foreign object debris (FOD), or foreign objects. Even when no immediate operational problems are found, such discoveries usually lead to investigations and checks on aircraft that may have gone through the same manufacturing process. Airbus told Bloomberg, “After identifying an isolated finding on an aircraft in production, we are determined to rule out the existence of similar situations on aircraft currently in service. We do not compromise on quality and safety.” Airbus plans to prioritize these inspections during scheduled maintenance stops to minimize disruption for airlines. This request may be followed by formal regulatory action, as the European Union Aviation Safety Agency (EASA) is expected to set a deadline by mid-November for completing the checks on affected aircraft. Airbus confirmed that EASA has not identified any immediate safety risks, so the action is a targeted precaution, not a general grounding of the A330neo fleet. The horizontal stabilizer is crucial for the aircraft’s stability and pitch control, and any unintended object inside it requires a thorough evaluation, even if no immediate danger has been identified. The issue had already affected the A330neo program. In early September, Airbus inspected all A330 aircraft in its production system after the tool was found during a pre-delivery check. The company described the problem as an “isolated” incident, stated that the root cause had been identified, and confirmed that deliveries had resumed. Airbus delivery data show the impact of the slowdown: no A330neo deliveries were recorded in January and February 2026, with only nine units delivered from March to May. Deliveries dropped again in June and July, with only one aircraft delivered in August. The inspections during the assembly process did not halt production itself, but they delayed customer deliveries as some aircraft had to undergo additional checks before being handed over. The A330neo, available mainly in the A330-800 and A330-900 variants, remains a key program for Airbus in the medium-capacity wide-body segment. The manufacturer aims to increase production to five units per month by 2029, as airlines closely monitor long-haul deliveries to meet fleet renewal needs. At this stage, Airbus maintains that the issue is isolated and that commercial operations are not affected by any immediate safety risks.