Half of the 10 Embraer E-190 cancellations in the second quarter come from Ukranian operator Dniproavia, the Brazillian airframer's order book shows.
At the end of the first quarter, Dniproavia had 10 E-190s on firm order. By the end of the second quarter, that number reduced to five firm orders, two of which had been delivered.
The Ukranian carrier maintains a backlog of three E-190 aircraft.
Dniproavia announced in January 2011 that it intended to purchase 10 E-190 aircraft to operate jointly with partner airline AeroSvit.
The remaining five E-190 cancellations in the second quarter are split between Republic, which made four E-190 cancellations, and Finnair, with one.
Also in the second quarter, Singapore-based carrier BOC Aviation converted one of its 15 firm E-190 orders to an E-195 order and Chinese operator Hebei Airlines made a commitment for five E-190s.
As of 30 June, Embraer reported a firm backlog of 200 E-Jets, which reflects orders for the Embraer 170, 175, 190 and 195 models. E-190 orders comprise more than half of this backlog, with 122 aircraft. The airframer has delivered 56 E-Jets so far in fiscal 2012, with 35 handed over in the last quarter.
Embraer says it plans to deliver between 105 and 110 E-Jets in 2012.