What was found
DURING TRANSIT CHECK, CAPTAIN REPORTED SLAT DISAGREE LIGHT TURNED ON. PSEU WAS TESTED SHOWING FAIL CODES 510 AND 580. PSEU WAS REPLACED IAW 34-19-01, BUT FAIL CONTINUED. LT SLAT SENSORS WERE CHECKED DETECTING FAIL IN SENSOR "C", SENSOR "C" AND ITS SPRING WERE LUBRICATED BUT FAIL CONTINUED. SENSOR "C" AND TX ANGLE ATTACK RT WERE REPLACED IAW MM 32-60-04 AND 27-80-06, TESTS CORRECT.