What was found
AIRCRAFT RETURNED TO PLATFORM, DURING TAXING, BEFORE TAKEOFF, LT ENGINE OIL QUANTITY DROPPED TO ZERO. LT ENGINE WAS SHUT DOWN WHEN LT OIL PRESS ANNUNCIATOR WAS ILLUMINATED. AIRCRAFT WAS SENT TO THE HANGAR WHERE THE HOUSING OIL FILTER WAS REPAIRED IAW MM 72-00-0 AND SEAL WAS REPLACED IAW MM 79-20-06, TESTS CORRECT.(K)