Aviation MRO software tracks every check, repair and part on each aircraft, against life limits in hours and cycles, in records that stay with the aircraft for life. MRO stands for maintenance, repair and overhaul. Airlines and other aircraft operators use it, and so do the specialist companies that maintain aircraft for them.
Two ideas explain what the software does. The first is the life limit. Many parts must be replaced after a set number of flying hours or cycles. A cycle is one take-off and one landing. The software counts the hours and cycles of every part and warns the planners before a limit is reached. The second idea is the record. Each inspection, repair and replacement is logged, with who did it and which part went in. Without complete records, the regulator can ground an aircraft and its value falls when it is sold. This is traceability in practice.
The software also plans the work. Planners group the due jobs into a work package for one check, so that the aircraft is on the ground only once for many jobs. Each job gets an engineer, a time and the parts it needs. This matters to an airline because an aircraft on the ground earns nothing.
Consider a part in an airliner's landing gear that must be replaced every 20,000 cycles. The aircraft has made 19,400 cycles. The software shows the planner that the limit will be reached in about eight months at the current pace of flights. The planner books the replacement for the next long check, orders the part from service parts management, and the software records the old part's removal and the new part's serial number. (The numbers are only an illustration.)
This page is about the history and plan of each aircraft. The manuals that say how to do each job are kept in aircraft technical publications. The software also takes data from the jet engine makers and sends records to the quality management system that the regulator audits. An AI assistant may draft the paperwork, but a person approves it, as in the model drafts, a person approves. Design records move through the digital thread from the maker's PLM system. All of this belongs to aircraft maintenance.