JetBlue Airways (JBLU) has decided to stop operating on some non-profitable routes in a bid to improve its financial performance. The carrier currently has limited planes in its fleet following a snag with RTX's Pratt & Whitney geared turbofan that powers Airbus A320neo jets.Due to this incident, JetBlue had to pull seven planes out of service. The number of planes withdrawn from service is expected to reach 15 by the year-end. Given the shrunk fleet-size, the decision to trim its network appears prudent.Ap ...