What was found
SMOKE IN CABIN AFTER APU STARTED AND PACKS ON SMOKE STOP W-PACKS OFF. DEFERRED APU BLEED. OPS BOTH PACKS ON GRD AIR, FOUND NEGATIVE ODOR OR SMOKE. CK FOR POSSIBLE APU BLEED CONTAMINATION. RAN APU AND PACKS. FOUND SMELL OF OIL. CANNOT ACCESS APU BECAUSE APU DOOR LATCH BROKEN. RAN BOTH ENGINES AND PACKS TO CLEAN OUT SMELL FIM 49-10 & PERFORM TASK 808. CHK FOR FOREIGN SOURCE OF FLUID & RPR OR RPL. IF NEED APU PCN: 295-9100. INCLD FNDG'S IN ACP W-U. REPLACED APU PER MM, OPS CKD OKAY.