As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE: 'EPSU AT LOCATION 10WL FAILED DUE TO A SHORT IN THE L1 SLIDE HARNESS; REF HAECO W/O 169003 NR 28557 R&R EPSU AT 10WL IAW AMM 33051-38-000-001 & 33-51-38-400-001-A OPS CHECK GOOD. NOTE: L1 DOOR SLIDE R & R ON LP 4060374 ITEM 1. END.'