As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CHECK FOUND R3 DOOR EPAS TEST FAILED. R3 DOOR EPAS INTERNAL, TWO EACH BATTERIES FOUND 8.8V LOW VOLTAGE. TWO EACH BATTERIES REPLACED & CHECKED SATISFACTORY IAW AMM 52-11-20. NEWLY INSTALLED BATTERIES 9.3V ROBBED FROM ACFT R3 DOOR POSITION.