As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT PACK ANC ILLUMINATED WHEN MASTER RECALL PRESSED. EXTINGUISHES WHEN MASTER RECALL RESET. GROUNDED-YES. PERFORMED BITE CHECK OF NR 2 TEMP CONTROLLER. FOUND THIS PACK TCV LATCHED. FAULT CLEARED AND DID NOT RETURN. NO 90 DAY HISTORY, REF B737-800 FIM 21-62 TASK 831. THIS CLEARS MEL 21-32B C/N 15018585. PLACARDS REMOVED. SEAMC MARK NOTIFIED.