As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AIRCRAFT NOT GROUNDED) EMG LIGHT BATTERY. REPLACED EPSU BATTERY AT LOCATION 10WL IAW MM 33-51-38-000-002-A AND MM 33-52-38-400-002-A. OPS CHECKED GOOD IAW MM 33-51-00-710-001-A.ITEM: 1REPLACED EPSU BATTERY AT LOCATION 10WL IAW MM 33-51-38-000-002-A AND MM 33-52-38-400-002-A. OPS CHECKED GOOD IAW MM 33-51-00-710-001-A.