As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAX - INFLIGHT DFW-HNL. CREW REPORTED ON TAKEOFF LEFT ENGINE BLEED LIGHT AND PRESSURE RELIEF VALVE MESSAGE ILLUMINATED. EMERGENCY DECLARED FLIGHT DIVERTED LAX LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. FOUND ELBOW FITTING ON THE PRESSURE RELIEF VALVE WITH THREADS STRIPPED. REPLACED ELBOW ASSEMBLY. SYSTEM GROUND CHECK NORMAL OPERATION.