As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GROUND POWER FAILED. APPLIED APU POWER WITHIN 10 SECS, LT ELECTRIC HYD PUMP STOPPED PRODUCING PRESSURE. ACFT GROUNDED. FOUND SYS "A" HYD PUMP CIRCUIT BREAKER C881 OPEN, RESET CIRCUIT BREAKER IAW AMM 20-60-01 AND WDM 29-11-12. CIRCUIT BREAKER REMAIN SET. HYD PUMP SYS "A" OPS NORMAL IAW AMM 29-11-00.