What was found
AIRCRAFT RETURNED TO PLATFORM. (LT STRAINER CLOGGING) LIGHT TURNED ON AND INTERFERENCE PROBLEMS IN LT SPEAKER. OIL FILTER AND DIFFERENTIAL PRESSURE SWITCH WERE REPLACED IAW MM 79-20-06 AND 79-35-01, RESPECTIVELY, AND TEST WAS PERFORMED IAW MM 79-00-00, ALL CORRECT. LT AUDIO CONTROL BOX AND FLIGHT RECORDER WERE REPLACED IAW MM 23-50-02 AND 31-31-01, RESPECTIVELY, TEST CORRECT.