As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#532, LGA-BOS. 'EMRG LT BATT FAULT EICAS MSG ON EICAS MULTIPLE TIMES OFF AND ON, STARTED AT BRAKE RELEASE FOR PUSHBACK. STAYED ON FOR 5-10 MINUTES AT A TIME THEN OFF FOR A FEW SECONDS AND BACK ON AGAIN; PERFORMED TEST OF MAU2 GIO2A AND GIO1A MODULE TEST PASSED. PERFORMED WIRE CHECK AND FOUND OK. REMOVED AND REPLACED FWD ATTENDANT PANEL. OPS CHECK GOOD, NO FAULT PRESENT IAW AMM 25-25-01 AND FIM 33-50-00-810-801-A.'