As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CRG SMK FWD FAIL, (1B). ( LOWER CARGO COMPARTMENT SMOKE DETECTION SYSTEM DETECTOR UNITS [ONE DETECTOR AT EACH LOCATION MAY BE INOPERATIVE AND THE REMAINING PORTIONS OF THE SMOKE DETECTION SYSTEM MAY STILL BEUSED.] ). GROUNDED - YES. REMOVED AND RPELACED. FWD CARGO SMOKE DISTRIBUTOR "IB" AND OPERATIONAL TEST GOOD. IAW AMM 26-13-01-400-801. PLACARD REMOVED AND MIC SHEET UPDATED.