As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FL290 LOWER AFT BODY OVERHEAT LIGHT ILLUMINATED, COMPLETED QRH PROCEDURES LIGHT WENT OUT. REMAINDER OF FLIGHT CONDUCTED WITH NR 3 BLEED OFF, NR 2 PACK OFF NORMAL POWER ON NR 3 ENGINE. CHECKED AFT AIRSTAIR AND FOUND RT PURGE VALVE V BAND CLAMP OPENING LESS THAN .5 INCH FROM SENSOR. REPOSITIONED V BAND CLAMP AND RAN BOTH NR 1 AND NR 3 ENGINES AND PACKS AT POWER. LOWER BODY HEAT OPS CK GOOD IAW MM 26-14-000-5 .