As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: WHILE ACCOMPLISHING WORKCARD 72T80052001 PASSENGER ENTRY DOOR 4R DID NOT PASS EMERGENCY POWER ASSIST SYSTEM (EPAS) BATTERY OPERAIONAL TEST (AMM 52-12-20-700-802-002). PARTIAL WORK ACCOMPLISHED REPLACED EPAS IAW AMM 52-12-20 AND RESERVOIR SQUIB IAW AMM 52-12-22 NO HELP, FOUND HIGH RESISTENCE ON MODE SEL SW S52121, CONNECTOR CLEANED, OPS CHECK IAW AMM 52-12-20 OK FOR SVC.