Wachiwiri kwa Purezidenti wa International Association of Machinists and Aerospace Workers' (IAM) Robert Roach, Jr. adzapereka umboni pa Julayi 30, 2008 pamaso pa Komiti Yanyumba Yowona za Maphunziro ndi Ntchito Yokhudza Zaumoyo, Maphunziro, Ntchito & Pension pa Delta Air Lines - Kugwirizana kwa Northwest Airlines kukhudza ogwira ntchito.
Mgwirizano wa Machinists umatsutsa mwamphamvu mgwirizano wa Delta / Northwest chifukwa udzathetsa ntchito, kuchepetsa zosankha za okwera ndipo sangachite chilichonse kuti athetse mavuto a makampani omwe ali ndi mavuto.
The Machinists Union ikuyimira antchito 12,500 aku Northwest Airlines ndipo pano ikukonza ogwira ntchito pansi pa Delta Air Lines. IAM ndi bungwe lalikulu la ndege ndi sitima zapamtunda ku North America, zomwe zikuyimira oposa 170,000 Flight Attendants, Customer Service Agents, Reservation Agents, Ramp Service Personnel, Mechanics njanji Machinists ndi ogwira ntchito zamalonda zoyendera.
