An A319 Captain reported repeated failures of the number two generator at non-maintenance stations were met with inadequate contract maintenance intended primarily to get the ailing aircraft to an air carrier maintenance station.

Narrative

After a normal landing the aircraft was configured; per SOP; for a single engine taxi. Number 2 GEN was selected off and the engine shut down after the prescribed cool-down period. As engine 2 wound down; GEN 1 faulted and the aircraft was without power. Aircraft was stopped straight ahead and the APU brought on line. Taxi to gate completed and Maintenance Control was notified. Aircraft was checked by contract maintenance and dispatched for additional flights. During taxi in; on the second subsequent flight; GEN 1 faulted again and it was again deferred for its last flight to a regular maintenance station. (not flown by reporting pilot). I am somewhat disturbed that the flight was dispatched following the initial fault with so little action taken. Something this unusual would suggest a hard fault in the generator but merely resetting by non-maintenance station contract maintenance seems to be the norm. The very fact it faulted again the following day suggests the maintenance preformed on this significant failure was wanting.