Bombardier says it has completed safety tests required to obtain certification from Transport Canada for the CSeries aircraft's maiden flight next month.
The manufacturer says it recently completed the last of seven tests on a grounded version of the plane.
Complete Airframe Static Testing, or CAST, is used to demonstrate the strength and integrity of the plane.
Tests simulate flight manoeuvres, landing, take-off and other in-flight and on-ground conditions.
The CAST system will continue to be used over the next 2½ years for 40 additional tests that simulate 30 years of the aircraft's operation.
Bombardier (TSX:BBD.B) says the smaller CS100 with 110 to 125 seats remains on track for its first flight by the end of June.
The plane is expected to enter into commercial service a year later.
The manufacturer also said it is aiming for longer intervals between maintenance checks to minimize downtime and costs for operators.
Bombardier has received commitments for 388 CSeries aircraft, including 145 firm orders from eight customers. Orders include 63 CS100 and 82 CS300.