As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
COMPLIED WITH TC 33-51-00-710-003-A FOUND POWER SUPPLY 10WL BAD / REMOVED OLD EMERGENCY POWER SUPPLY UNIT AND REPLACED WITH NEW EMERGENCY POWER SUPPLY UNIT I/A/W 33-51-38-400-002-A PERFORMED BITE TEST I/A/W 33-51-00-710-001-A, NO DEFECTS NOTED."