Airbus' July order figures show that UK budget carrier EasyJet has acted on its plans to convert some of its A319 orders to A320s, switching 25 over to the larger variant.
Earlier this year London Luton-headquartered EasyJet outlined its plans to switch some of its orders between the types - a move which would mark its first direct orders for the larger A320 aircraft.
Airbus' July figures show that the budget carrier has now converted 25 of its A319 backlog to A320s. These comprise nine aircraft from its December 2005 order and a further 16 from its November 2006 batch.
The changes leave EasyJet with a backlog of 110 A320 family aircraft, comprising 85 A319s and 25 A320s, with options on a further 88.
An EasyJet spokesman says: "Unfortunately we are not in a position to confirm or deny any details relating to the aircraft order."
When EasyJet acquired former British Airways franchise carrier GB Airways, it widened the scope of its fleet to include nine A320s and six A321s.
Although this enabled the budget carrier to test the larger Airbus variants, it is in the process of disposing of these aircraft as they are configured and engined differently to EasyJet's own fleet.