The company is expecting major revenue growth in 2019 from the sales of the Longitude jet and said deliveries of the aircraft would begin in the third quarter of this year.

"We continue to coordinate closely with the Federal Aviation Administration as our engineer group works to complete the underlying documentation that is required under the FAA's design assurance process," Chief Executive Officer Scott Donnelly said.

(Reporting by Divya R and Ankit Ajmera in Bengaluru; Editing by Shailesh Kuber)