The airline called on the Aircraft Mechanics Fraternal Association to comply with its legal obligation and “take immediate action to stop this activity”. If AMFA wants to challenge its findings, the carrier said it asked the group to provide information and data so it can work with the company to resolve the “dramatic and highly unusual spike” in aircraft downtime.
Collected and summarized from the source below by Quynh Hoa https://skift.com/2019/02/24/southwest-calls-flight-disruptions-a-deliberate-effort-by-mechanics/