What was found
(AIRCRAFT NOT GROUNDED) EPSU FAILED CAPACITANCE CHECK / REPLACED ALL 4 EPSU BATTERIES, OP CHECK OF EPSU THRU BITE GOOD, INTERFACE AND POWER-UP TEST OF CIDS GOOD, REF AMM 33-51-38-400-002-A"
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(AIRCRAFT NOT GROUNDED) EPSU FAILED CAPACITANCE CHECK / REPLACED ALL 4 EPSU BATTERIES, OP CHECK OF EPSU THRU BITE GOOD, INTERFACE AND POWER-UP TEST OF CIDS GOOD, REF AMM 33-51-38-400-002-A"