What was found
AT GEAR RETRACTION IN MSP AND IND, HAD A STRONGER THAN NORMAL VIBRATION & NOISE, AS WELL AS AN ODOR THAT LASTED ABOUT 10 SECS. NO OTHER ABNORMALIES NOTED. REPLACED LT & RT NOSE WHEEL ASSYS IAW AMM 32-42. PERFORMED AMDS CARD 0550-2002 UP TO STEP 18 DECISION TREE IS APU HIGHEST THEN LT PACK. PERFORMED AMDS CARDS 4900-2001 AND 4916-2001 DUE TO APU INLET DIRTY. NO LEAKS NOTED AFTER APU RUN. FOUND FWD CARGO DOOR SELECTOR VALVE LEAKING. R & R SAME IAW AMM 52-36. NOTED HYD PTU LEAKING. BELLY OF A/C DIRTY FROM FWD CARGO TO APU COMPART EXTREMELY DIRTY, CLEANED BELLY IAW AMM 12-21. R & R LT & RT REC FILTERS IAW AMM 21-21. PERFORMED LEVEL A DECONTAMINATION WORKCARD 2100-2007. SMELL STILL PRESENT. PERFORMED AMDS 0550-2001. SUBMITTED SNIFFER TEST RESULTS TO MCC FOR FURTHER REVIEW. NO SMELL NOTED.