What was found
ON TAKE OFF @ YZZ MUSTY DIRTY SOCK / EXHAUST FUMES IN COCKPIT AND CABIN FOR APPROX 1-2 MINS. DISIPATED QUICKLY NO VISUAL SMOKE . ENGINE INSTRUMENTS NORMAL. NO GO ODI PREVENTION - PROGRAM IN WORK - WORKCARD 2120-2367 IN WORK. FOUND APU INLET SLIGHTLY CONTAMINATED WITH HYDRAULIG FLUID . PERFORMED APU INLET DEEP CLEANING WK 4900-1185 TO STEP 3I. FOUND HYD TRANSFER PUMP RETURN LINE LEAKING - RETORQUED LINE - LEAK CHK GOOD - C/W NO GO ODI 2172 - COMPLETED W/C # 2120-2367, 4900-1185, 4950-2215 AND 2170-4139 - A/C OK FOR SERVICE (LP6556978)