As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:SDR TEST OF AUTONOMOUS PWR SUPPLY UNIT UNSATISFACTORY R7R AUTONOMOUS PWR SUPPLY REF MM 52-73-18-0401. SYSTEM STILL FAILS BOTH BATTERIES. TRANSFERRED CABIN/CARGO DOOR RES PRESSURE WARNING SYST TO MEL 52-73-02. **SUPPLEMENTAL SDR** RESET ELECTRICAL CONNECTOR AT ASPSU. PERF TEST OF ASPSU PER AMM 52-73-00. ALL OPS TEST GOOD. LIGHT TEST AT ASPSU ALL GREEN. THIS CLEARS M658310.