Actually the American flight delays and cancellations are not due to a labor slowdown by the pilots but because of a pilot shortage at American. American's refusal to negotiate last year with the pilots on a new contract led to a majority of senior pilots taking early retirement before another new contract was presented. This created a situation where American had more airplanes than they had pilots, add to that the number of pilots who became eligible for retirement this year and American was forced to cancel flights for the remainder of 2012 where they had no available flight crew.
Stains on cockpit seats is not a mechanical problem.
Seats that are not bolted down, dents or cracks in engine fan blades, tires that do not have the correct air pressure, bent landing gears, excessive oil leaks, broken lavatories, blown fuses, and non-working cockpit instruments and lights, these are all mechanical problems that are not the fault of the pilots but they are required to report them so the aircraft is airworthy or safe to fly. Pilots don't fix planes, mechanics do, and the pilots have no control as to when those repairs will be made or finished. Did you know an American pilot does not begin earning their pay until s/he pushes back from the gate?
If one were to go to the FAA website they would find that the FAA keeps a record of all reported mechanical problems, by airline, that shows the reasons, facts, rather then the opinions for delays and cancellations posted on flyertalk or some other traveler forum by the uninformed.