Hello I'm John and I'm A.1 certified technician. Line maintenance is the one that is carried out in the ramp and only small or fast maintenance actions are mainly carried out. The main purpose of the line maintenance is to keep the aircraft serviceable at all times so it can perform the scheduled flights. Daily checks are usually carried out during the night for short and medium range aircraft and at random time of the day for long range aircraft, time when the aircraft rests for around 4 to 6 hours depending on the company and the flights it his doing. During this daily check a walk around is done to take a look at the aircraft looking for damage, leaks, wheels, brakes, engine oils are serviced, struts are cleaned… also the cabin and the cockpit are checked. In the line maintenance the weather and time are very important factors affecting the work of the engineer.