What was found
MODERATELY DIRTY SOCK ODOR FROM ABOUT 2000 FT TO 8000 FT. ONLY NOTICEABLE IN COCKPIT. FOLLOWED INFO NOTICE 2017-T015C. FOUND APU CONTAMINATED WITH OIL. PULLED AND COLLARED CIRCUIT BREAKER L41 L42. APU COMP AND AIR INLET SOAKED IN OIL, NO VISIBLE SIGNS OF LEAKS. AFTER REVIEWING ACFT HISTORY, THE APU AUTO SD MEL WAS JUST CLEARED LAST NIGHT WITH LUBE SHAFT REPLACEMENT. MAY HAVE BEEN RESIDUAL. COMPLIED WITH INFORMATION NOTICE 2017-T015C SEC A. AIRCRAFT IS OK FOR SERVICE .