As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOWER CARGO FWD A SIDE INOP DETECTOR LOOP. GROUNDED - YES. OPS TEST OF CARGO BAY SMOKE DETECTION OPS CHECKS OK. CLEANED ALL FWD CARGO BAY SMOKE DETECTORS. OPS TEST CARGO BAY SMOKE DETECTION SYSTEM, AGAIN, OPS TEST OK. REF B737-800 AMM 26-16-00 & 26-16-01. ETOPS GROUND VERIFICATION TESTS OK.