What was found
AT FL 3700 RECEIVED MAIN CARGO DOOR ELCAS MESSAGE AND CAUTION LT . DESCENDED TO 19000 PER CHECK LIST. FOUND SENSORS S890 , S892 DIRTY . CLEANED SENSORS AND CHECKED GAPS PER 52-71-09 . ALSO TURNED SEAL AFT SIDE ON DEPRESSURE STICKING OUT . RESECURED SEAL AND PRESSURIZED A/C PER 05-51-24 . NO LEAKS NOTED . INFORMED AMC .REMOVED AND REPLACED MAIN CARGO DOOR LOCK SENSOR S892 PER AMM 52-71-09. OPS CHECK GOOD EFF REF: 52-71-07-01 ITEM #220L. ORIG SUB DATE: 9/27/2022