What was found
SLAT DISAGREE LIGHT ILLUMINATED WITH FLAP EXTENSION FROM 22 TO 35 AND REMAINED ON. PERFORMED RED TABS. LANDED WITH 22/EXT CONFIGURATION. ACCOMPLISHED DETAILED VISUAL INSPECTION OF THE SLAT CABLES BOTH LEFT AND RIGHT WING, PERFORMED PCU BITE TEST ALL CHANNELS PASS, PERFORMED SLAT TIMING TEST REF: 27-80-00-5-1 PASSED TEST. PERFORMED SLAT POSITION TEST PANEL CHECK REF: 27-80-00-6 PANEL PASSED TEST. CLEANED INBOARD SLAT SENSOR AND TARGET (MASSIVE AMOUNT OF GREASE ON TARGET & SENSOR). REMOVED AND REPLACED LEFT AND RIGHT NR 4 SLAT SENSOR BOTH A & B CHANNELS, PERFORMED ANOTHER PCU BITE TEST ALL CHANNELS PASSED.