Singapore Airlines, the world’s second-largest carrier by market value, said the introduction of its 12th Airbus SAS A380 has been delayed after Koito Industries failed to deliver business-class seats on time.

The plane had been due for delivery this quarter and “has been delayed as a result of the issues that Koito has faced,” Nicholas Ionides, a spokesman for the carrier, said in an e-mail reply to Bloomberg queries. He said the delay isn’t affecting the airline’s current operations and he expects the plane to arrive before the end of March.

The postponement is the second time Singapore Air has pushed back introduction of an A380 because of late Koito seat deliveries. Rivals All Nippon Airways Co., Continental Airlines Inc. and Thai Airways International Pcl have also suffered delays after Koito in February admitted it falsified test results and made unauthorized design changes to its seats for at least a decade.

“We are working closely with Airbus, Koito and the relevant regulatory authorities and expect the issues to be resolved soon,” Ionides said in the e-mail.

Koito Industries spokesman Hidetsugu Matsudaira had no comment on the Singapore Air statement.

Koito rose 3.5% to 150 yen ($29.6) as of 1:31 p.m. in Tokyo trading. Parent Koito Manufacturing Co., part-owned by Toyota Motor Corp., advanced 0.6% to 1,275 yen. Singapore Air fell 0.9% to $15.66 in Singapore trading.