"United Airlines Pilots Face Unpaid Leave Amid Boeing Woes"

United Airlines is offering its pilots voluntary unpaid leave due to delayed deliveries of new Boeing aircraft, leading to an overstaffed situation. Pilots can take off for a month at a time without pay, and the program is expected to continue into the summer and possibly fall. This move comes after United announced a pause in pilot hiring. The situation reflects a shift from a recent pilot shortage to an oversupply, as airlines negotiated lucrative contracts with pilots during a period of high demand, which has now decreased due to various industry challenges.