As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CARGO BOTTLE LOW CAUTION MESSAGE IN FLT COMPLIED WITH QRH (ENROUTE, ACFT DIVERTED DUE TO MX - EMERGENCY EQUIPMENT DID RESPOND) INSPECTED BOTH CARGO FIRE BOTTLE PRESSURE GAUGES IAW AMM CH 26-25-01 AND PERFORMED OPS TEST IAW AMM CH 26-25-00. NO DEFECTS FOUND. ACFT OK FOR SERVICE.