The crack was located on the outermost layer of the cockpit windscreen. While alarming to passengers, this is a manageable emergency for pilots trained to handle pressurization issues. The aircraft depressurized slowly, and oxygen masks were not required to be deployed. The incident highlighted the maintenance status of older A330 airframes used for long-haul operations.
: By late 2021, Airbus introduced more restrictive airworthiness tasks (ALS Part 4) to address accidental damage and corrosion that could lead to catastrophic structural failure if left unmonitored. Notable A330 Incidents in December 2021 black box a330 crack 12 2021
: The investigation found that existing procedures allowed parts to be replaced after the December 17 incident without a mandatory, thorough damage assessment of the surrounding structure. Industry Impact : Following this occurrence, Airbus modified the A330 Maintenance Manual The crack was located on the outermost layer