What was found
PDX - FLIGHT 2575, RETURNED TO THE GATE FOR THE APU BATTERY POPPED THE CIRCUIT BREAKER AFTER ENGINE START. MAINTENANCE REPLACED THE K101 RELAY. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PDX - FLIGHT 2575, RETURNED TO THE GATE FOR THE APU BATTERY POPPED THE CIRCUIT BREAKER AFTER ENGINE START. MAINTENANCE REPLACED THE K101 RELAY. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.