American Airlines planned to cancel at least five flights scheduled to depart from Kennedy airport Thursday morning and said others could be delayed one day after a software glitch in the carrier’s baggage-handling system caused dozens of lags, several cancellations and a luggage pileup at ticket counters, a spokeswoman said.

The malfunction on Wednesday led to the delay of 48 flights, the cancellation of five more, and headaches throughout the day for passengers flying out of Terminal 8, one of the newer buildings at JFK.

Technicians had diagnosed the problem by Wednesday evening. However, the system was still being tested early Thursday and wasn’t yet up and running again.

Thousands of customers had to leave their luggage behind and hope it would be delivered later. Hundreds of bags accumulated in the terminal lobby. The breakdown was galling to some passengers already steamed over the airline’s recent decision to start charging fees for checked bags on flights within the U.S. and Canada.

(Source: WNBC)