What was found
FUMES SMELLED BY FA AND PAX IN AFT CABIN AFTER T/O DURING INITIAL CLIMB.AFT CA-SIDE LAV SMOKE DETECTOR ACTIVATED.NO SMOKE NO FLAME NO HEAT OBSERVED.QRH COMPLETED .TAKEOFF FLAP 2 ,D43,NO UNUSUAL ENGINE INDICATIONS NOTED. C/W NO GO ODI 2172 STEPS 1 AND 2[904531] C/W AMDS 2120-2367 PNEUMATIC T/S FOUND APU OIL FILTER BOWL SMALL LEAK.REPLD, O-RING CKS GOOD. C/W AMDS 2120-2368 C/W 2900-2002,2003 H/C INSP,C/W 4900-1184 APU INLET CLEANING.AMDS CARD 7100-2619.FULL BURN.A/C READY FOR SERVICE. (LP5001816)