What this relates to
Faulty or incomplete maintenance work; foreign objects left in the aircraft after maintenance; problems in planning and monitoring of maintenance activities, use of documentation and compliance with procedures; or production and known design problems. These are reportable incidents that can occur during aircraft maintenance.
Example
During maintenance, the aircraft technician finds loose terminals. The manufacturer did not tighten them to the prescribed torque.
Commentary on the 2023 figures
The number of maintenance incidents increased relative to previous years (1.3 incidents per 10,000 aircraft movements in 2021; 1.7 in 2022; 2.5 in 2023). The average severity level dropped during this period (2021: 18.8; 2022: 15.4; 2023: 11.5). The reports were mainly related to incorrectly or incompletely installed components and systems. Mistakes were also reported in the planning and supervision of prescribed maintenance intervals, as well as exceeded maintenance intervals.
