What was found
INSPECTED APU. NOTICED HEAVY OIL SMELL ON RIGHT SIDE OF APU COMPARTMENT (WIP299411) FOUND OIL LEAK AT THE OIL COOLER RETURN AND SUPPLY LINE. REMOVED AND REPLACED BOTH LINES PER A321 AMM 49 -91-44 P/N 3881763-2 & 3881764-2. ACCOMPLISHED AMDS CARDS 0550- 200, 4900-2001 AND 4916-2001. REMOVED AND REPLACED BOTH RECIRCULATION FILTERS PER A321 AMM 21-21-41. LEAK CHECK GOOD. NO SMELLS NOTED. OK FOR SERVICE. (LP# 1818802)