Suit alleges the NetJets pilot union sent hundreds of "vulgar, threatening, and malicious mailings" to the homes of Flexjet company managers and employees.
Bombardier delivered 137 bizjets last year, down one from 2017, and expects to hand over 150 to 155 this year as it ramps up production of its Global 7500.
Operators of newer EASA-certified large airplanes and large helicopters are now required to phase out the use of Halon as an onboard fire extinguisher.
The company in cooperation with DC Aviation Al-Futtaim's Dubai facility has performed its first work on a Saudi-registered aircraft, an A-Check on an A320.