It appears the operational problems at AA in Sept. did result in bookaway of higher value customers.
AA has noted that their RASM was down in October as a result of the operational impact earlier in the fall.
"October's consolidated passenger revenue per available seat mile (PRASM) increased...
AA's traffic results show that AA mainline domestic RPMs were off 7% on 5.5% less capacity, offset by AA's performance on its int'l network where AA appeared to be able to retain customers better. AMR's consolidated RPM's were off about 3% on 3.4% less capacity.
AA's RASM was up about 4% but...