AA's AMTs have a wage rate that's among the lowest in the industry but there's two sides to that story. AA's line mechanics are very underpaid compared to UPS, FedEx and WN. AA's overhaul mechanics enjoy above-average pay compared to AMTs at stateside (domestic) MROs. As I've posted before, AA is probably not willing to pay its overhaul staff the same hourly pay that UPS, FedEX or even WN pays their line mechanics.
AA is not willing to pay anybody, we are going to have to make them.
Well what does SWA pay their OH mechs? The fact is they do have OH, so does Delta, UAL and USAIR and all those mechanics earn considerably more than MRO mechanics. The UAL TA has language to bring more work back in house, could be that they are tired of forking over 13% of their revenue for M&R services. IIRC the norm for all of M&R (labor, parts etc) was around 10%, so the 13% was in addition to what they were paying their own line mechs.