Bombardier's (TSX:BBD.B) CSeries test flight program has been grounded following what the company called "an engine-related incident" on one of the test aircraft during ground maintenance testing in Mirabel, north of Montreal.
A company spokesman said there were no injuries and testing will resume pending an investigation by the company, engine-maker Pratt & Whitney and Transport Canada.
The nature of the incident that occurred late Thursday afternoon wasn't immediately disclosed.
Firefighters from Mirabel airport responded to a call.
The aircraft's entry into service has already been delayed until the second half of 2015.
On the Toronto Stock Exchange, Bombardier shares were down 14 cents, or 3.7 per cent, at $3.64 on very heavy volume of 18.5 million shares.
