Line Maintenance & AOG Line Stations

Line maintenance is the lightest tier of the MRO hierarchy, performed at the gate or on the apron between flights: daily and pre-flight checks, transit checks, defect rectification, fluid servicing and scheduled A-checks. Providers run permanent or roaming line stations under EASA Part-145, FAA 145 or GCAA CAR-145 line scope, with type ratings matched to the carriers transiting that field. The cluster also covers Aircraft-on-Ground (AOG) line response — rapid mobile teams and 24/7 desks that recover grounded aircraft. Buyers are airline technical departments choosing transit-station coverage, and ground handlers or hub MROs selling third-party line support across their network.