What was found
MOMENTARY SMELL WHILE DESCENDING THROUGH OZONE LAYER INTO SAN WENT AWAY ONCE PAST THAT LAYER. PERFORMED TSM 05-50-00-810-831-A, IDENT OF CAUSE OF CABIN ODOR. PERFORMED PACKS SYS OPS CHECK IAW AMM 21-58-00. PERFORMED ENG IDLE RUN IAW AMM 71-00-00, TEST OK NO DISCREPANCIES NOTED.