Spirit Airlines (NK, Fort Lauderdale International) has confirmed it has abandoned plans to take delivery of any more A320neos until 2019.

The Ultra low-cost carrier said in an SEC filing on Friday, April 28, that of the four A320neo it had intended to take delivery of in 2018, two have been converted to A320ceo (for delivery this year) with the remaining two now deferred until 2019. The renegotiated contract was finalized during the first quarter of the year, it said.

As it stands, Spirit's A320neo delivery schedule will see fourteen deliver from Airbus (AIB, Toulouse Blagnac) in 2019, sixteen in 2020, and eighteen in 2021. The carrier has already taken delivery of five A320neo all of which are Pratt & Whitney PW1127G-powered variants. The aircraft have, however, been subject to recurring technical glitches with two - N901NK (msn 6833) and N905NK (msn 7334) - now inactive since March.