What was found
PDIS 592 26-12 3896 14SEP19 MEM FACT U LOGPAGES:2863413 CABIN SMOKE DETECT @ 9000 FT SHGN 14SEP19 11:38 MEM U PERFORMED GVI OF CARGO SMOKE DETORS, ALL DISPLAYED GREEN. PERFORMED OPERATIONAL TEST OF CARGO SMOKE SYSTEM, REF AMM 26-15-1-5. NO FAULTS NOTED. NEEDS ADDITIONAL TROUBLESHOOTING. UPDT 14SEP19 15:29 MEM U MEM FIRE DEPT REPORTED THE CAPTAIN STATED THE ALERT WAS ON FOR LESS THAN 2 SEC. REF FIM TASK 26-15-01-00 PERFOMED ADJ/TEST OF UPPER DECK SMOKE DETECTORS PER AMM 26-14-01-5. DISCONECTED EACH DETECTOR TO VERIFY TEST WOULD SHOW FAILURE AND INSERTED OBJECT TO MAKE EACH UNIT SHOW SMOKE. NO FAULTS NOTED. NO CURRENT OR LAST LEG FAULTS IN MSC. PERFOMED R-T-S OF MSC REF AMM 31-42-01-5, ALL TEST PASSED. NO HISTORY OF CABIN SMOKE. A/C OK FOR CONT SERVICE. REOPEN ITEM DUE TO MOCC REQUEST TO COMPLY WITH TSI 26-12-3897 AND TSI 24-30-3881. REF TSI 26-12-3897 R/R THE FIRST 4 MAIN CARGO DECK SMOKE DETECTORS REF AMM 26-14-01-4 OPS CHECKS GOOD. REF TSI 26-12-3897 R/R MSC REF AMM 31-42-01-4. REF TSI 24-30-3881 PERFOMED FIM 24-30-03-00 STEP 1. PERFOMED OPS CHECK OF BATTERIES REF AMM 24-34-02-5,ALL TEST GOOD.