As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SPAR VALVE ENG 2 CIRCUIT BREAKER POPPED. GROUNDED - YES. CONDUCTED GVI OF P6-3 AND P6-2 PANELS TO ENSURE C/B B3 CONDITION IS NORMAL, AND IT PASSED, PER B737-900 AMM 20-60-01. RESET C/B , B3 PERFORMED VERIFICATION OF NORMAL SPAR VALVE OPERATION PER B737-900 FIM 28-22 TASK 812. NO HISTORY LAST 30 DAYS. CK'S GOOD FOR SERVICE.