As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS-FOUND 2 CHECK VALVES IN LOWER DECK CARGO COMPARTMENT FIIRE EXTINGUISHING SYSTEM TO BE BAD DURING TASK CARD 330-262300-04-2 INSPECTION. REMOVED AND REPLACED CHECK VALVES (5016WE) (5017WE) PER AMM 26-23-21. LEAK CK GOOD. OK FOR SVC.