JetBlue Airways saw its liquidity fall again during the fourth quarter, as capital expenditures for aircraft more than doubled.

Liquidity at the New York-based carrier decreased 8.3% to $1.32 billion, including the full $625 million available under its revolving credit facilities, during the fourth quarter, an annual financial filing shows.

At the same time, aircraft-related capital expenditures more than doubled to $283 million for seven Airbus A321 deliveries. JetBlue invested $123 million in aircraft the prior quarter.

Cash, cash equivalents and investment securities decreased 14.9% to $693 million during the period, the filing shows. Cash was down 28.6% year over year.

Long-term debt and capital lease obligations decreased 2.9% to $1 billion during the fourth quarter. Debt was down 16.7% compared to the end of 2016.

JetBlue expects deliveries of 10 A321s in 2018, totalling roughly $800 million in commitments.

The carrier plans to pay for the deliveries with a mix of cash and debt, the filing states.

Source: Cirium Dashboard