What was found
DURING LINE MAINTENANCE, THE AFT LEFT EPSU FAILED CIDS TEST. REPLACED EPSU AND BATTERY PACK, OPERATIONAL CHECK OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING LINE MAINTENANCE, THE AFT LEFT EPSU FAILED CIDS TEST. REPLACED EPSU AND BATTERY PACK, OPERATIONAL CHECK OK.