What was found
AIRCRAFT WAS NOT GROUNDED: DURING REPLACEMENT OF AFT LEFT SLIDE, ACCOMPLISHED EPSU TEST AND FOUND FAULT BAT/EPSU (13WL) AFT L. REMOVED AND REPLACED EPSU.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WAS NOT GROUNDED: DURING REPLACEMENT OF AFT LEFT SLIDE, ACCOMPLISHED EPSU TEST AND FOUND FAULT BAT/EPSU (13WL) AFT L. REMOVED AND REPLACED EPSU.