"Our team has been mitigating supplier delays, and our factory continues to build 52 airplanes per month." CFM is working to fix delays by year-end, the GE-Safran venture said. Spirit did not immediately respond to a request for comment. Among airlines with large 737 fleets, American Airlines Group Inc has seen slight delays on a small number of 737 MAX deliveries, while No. 4 carrier Southwest Airlines Co sees "minor changes" on future deliveries, but the delays have not disrupted operations, company representatives said. Aircraft leasing company Air Lease Corp was still seeing 737 delivery delays of "a month or less," spokeswoman Laura Woeste said. REUTERS