What was found
FOUND DURING A-2 LETTER CHECK - CHECK VALVE BROKEN/BLOWN AT BASE OF A-SYSTEM PRESSURE MODULE. REPLACED A-SYSTEM MODULE, P/N 294001002.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FOUND DURING A-2 LETTER CHECK - CHECK VALVE BROKEN/BLOWN AT BASE OF A-SYSTEM PRESSURE MODULE. REPLACED A-SYSTEM MODULE, P/N 294001002.