What was found
UPON REMOVAL OF THIS RELAY FOR REPLACEMENT, LOOSE HARDWARE WAS HEARD RATTLING AROUND INSIDE. SUBMITTER STATED THIS IS A CONTINUING PROBLEM WITH THIS TYPE AND PART NUMBER RELAY AND HAS BEEN FOUND ON SEVERAL OTHER OCCASIONS. THE RELAY WOULD NOT HAVE FAILED HAD IT NOT BEEN FOR THE LOOSE HARDWARE INSIDE. THIS RELAY IS THE BATTERY DISCONNECT RELAY AND HANDLES LARGE AMOUNTS OF CURRENT (200 AMPS). WHEN THE RELAY FAILS, IT ALLOWS THE AIRCRAFT BATTERY TO BE DISCHARGED THROUGH THE APU!