As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AIRCRAFT NOT GROUNDED) PER WEEKLY CHECK TASK CARD A32X-05-000-002, PERFORMED OPERATIONAL TEST OF EPSU. RESULT IN FAULT, EPSU (13WL) AFT L/DEU B (300RH7). TROUBLESHOOTING REQUIRED / PERFORMED TROUBLESHOOTING PER TSM 33-51-00-810-860-A. UP TO STEP 4(B) (1) (C). CONTINUE TROUBLESHOOTING REQUIRED. REMOVED AND REPLACED EPSU (13 WL) IAW AMM 33-51-38-000-001 AND AMM 33-51-38-400-001. OPS TEST FAIL."