The airline has been consistently down aircraft over the past couple of weeks and they haven’t been able to fly a portion of their schedule. The carrier has been down 60 planes a day because a group of mechanics are writing up everything they can find to write up.
The airline is almost certainly right that there’s a coordinated illegal job action on the part of mechanics, and it’s causing damage to the airline. However the carrier has maintained a strong culture of working with its employees. It didn’t engage in layoffs during economic downturns. It has managed to retain a culture where employees generally like their jobs. Southwest Airlines isn’t the same place it was under Herb Kelleher but these sorts of confrontations chip away at what’s left of the culture little by little.