Mitsubishi Aircraft is reviewing the development schedule for the MRJ regional jet, following the commencement of flight-testing.
The airframer says the “entire schedule” from testing to initial delivery is being examined, in co-operation with Mitsubishi Heavy Industries.
Mitsubishi has not specifically stated whether this review is an indicator of possible further delays to the programme.
It says only that it will disclose the results of the assessment before the end of December.
The MRJ is currently set to be delivered in the second quarter of 2017.
Mitsubishi conducted the maiden flight of the Pratt & Whitney PW1200G-powered type on 11 November.