Dozens of other businesses depend on Bombardier's success
Bombardier is not only Northern Ireland's biggest manufacturer, the aerospace firm also ensures dozens of other businesses here receive regular work.
They include Bangor-based Denroy Plastics, which builds parts for both Bombardier and Airbus jets, McAuley Engineering in Ballymoney and Hutchinson Engineering in Coleraine.
"Bombardier are strategically important to Northern Ireland," Stephen Kelly of Manufacturing NI said.
"Their success has a big impact on the wider manufacturing sector in Northern Ireland, particularly sub-contractors and suppliers across Northern Ireland."
"We wish them great success, because they will have a big bearing on Northern Ireland's future." Despite a source telling the Belfast Telegraph the situation surrounding the CSeries jets was "deeply worrying", he also said "it could still come right" for Bombardier.
"It's a most depressing moment for them now, but a bright tomorrow may be coming, though there's no sign of that yet," the source said.
Bombardier now has 243 "firm orders", but says it has "booked orders and commitments for 603 CSeries aircraft" in total.
A spokesman said staff numbers in Belfast varied: "The number of engineering, operations and support staff engaged in the production of the advanced composite wings fluctuates. At full production, an average of 800 people will be working on the wing programme in Belfast."