What was found
PBI - FLT 165 - FIRE WARNING IN AFT LAVATORY DURING CLIMB-OUT, DETERMINED TO BE FALSE. ALL LAV SMOKE DETECTORS CHECK NORMAL, CHECKED APU COMPARTMENT FOR OIL LEAKS, NONE FOUND. CHECKED APU SUPPLY DUCTING FOR OIL CONTAMINATION, NONE FOUND. CHECKED NR 1 AND NR 2 8TH AND 13TH STAGE SADDLE DUCT END CAPS AND DUCTING FOR CONTAMINATION OF OIL, NON FOUND. APU OPS CHECK OK. (M)