Bombardier Aerospace kept on pace financially in its second quarter to 30 June, despite a 20% drop in commercial aircraft deliveries from last year.
The aircraft manufacturing unit of Bombardier posted revenues, costs and margins that came in even with those of last year's second quarter.
Gross margin rose $2 million to $333 million, as revenues slipped less than 1% to $2.26 billion and costs fell by a similar margin to $1.92 billion.
The Canadian airframer delivered 12 commercial aircraft in the quarter, compared with 15 in the same period a year ago.
Pierre Beaudoin, Bombardier's president and chief executive, lauded the aerospace unit for increasing profitability and free cash flow.
Of the CSeries development programme, he notes that implementation of the latest software upgrades is continuing in the run-up to the airliner's first flight, which has been delayed further from late July to the "coming weeks".
Including the Transportation division, which manufactures railway cars, Bombardier's overall net income rose 22% year-on-year to $180 million. Revenues increased 7.8% to $4.43 billion.
Bombardier held $3.1 billion in cash and cash equivalents as of 30 June.