As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: WHILE PERFORMING JOB CARD 26L20025014 STEP 6.J. OPERATIONAL TEST OF THE EMERGENCY LIGHTING SYSTEM, FOUND FAULT ATA 33-51-38 EPS UINT LOAD AFT L & EPSU EXT LOAD AFT L. T/S IAW TSM 33-51-00-810-808-A. REMOVED & REPLACED RIGHT AFT SLIDE/RAFT IAW J/C 26L00025011. SATISFACTORY OPS CHECKS ACCOMPLISHED.