What was found
ETOPS - WHILE WORKING CARD #7251-01159-01-02, UPPER EXTERNAL OIL VENT TUBE, ITEM 100, WAS FOUND TO HAVE OIL COKING // REMOVED AND REPLACED EXTERNAL OIL VENT TUBE PER A330 AMM 72-51. OPS & LEAK CHECK GOOD. OK FOR SERVICE. P/N ON/OFF: FW14191