The European air navigation service providers' (ANSPs) response to the proposed Single European Sky (SES) performance targets for 2010-2014 has disappointed the International Air Transport Association (IATA).
IATA director general and CEO Giovanni Bisignani said the SES objective is a 50% cut in air traffic management costs by 2020 and is critical for a competitive European air transport sector.
But the ANSPs believes the targets are unrealistic.
"It is very disappointing that the ANSPs are beginning to complain about initial targets, which are simply to absorb the costs of growth with efficiency gains," Bisignani said.
SES said it will increase cost efficiency and airspace capacity three-fold, improve the safety record by a factor of ten and reduce the effects on the environment by 10%.
The independent Performance Review Board (PRB) has recommended an initial target for ANSPs to reduce costs by 4.5%.
The PRB performance targets are an integral part of the Single European Sky Package II (SES II) approved by the European Union Transport Council in March 2009.
The SES, when fully implemented, is expected to bring cost benefits of €5bn ($6.9bn) each year.