The companies said, in a statement, "The first flight and the subsequent flight tests have confirmed the basic characteristics to be satisfactory. However, we also have recognized several issues as we attempt to accelerate our development. In order to tackle these issues and address the perspectives below, we have reviewed and revised our overall schedule."
Specifically, in the progress of their engineering work together with experts in the United States, the companies have made additions to and revisions of test items in order to complete a better-integrated aircraft. These have been reflected in the new delivery schedule. In addition, they companies have undertaken an overall review with their partners, and reflected this in their development schedule.
The companies also said, "Looking ahead, we will be managing our milestones, and increasing the precision of our schedule as we progress. We will also carry out flight test campaign in North America as soon as feasible and assign the roles and responsibilities of the three engineering bases (Mitsubishi Aircraft Headquarters, Seattle Engineering Center and Moses Lake Test Center) for prompt execution in all fields. With all these measures, we aim to propel the development of the MRJ."
The MRJ is a single-aisle aircraft that offers configurations for 70- or 90-passenger seating, and features some composite structures and parts.
FAR 25.853 http://en.fireresearch.cn/test-research/far25-853-60/
FAR 25.853 http://en.fireresearch.cn/test-research/far25-853-60/