As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BLEED TRIP OFF LIGHT ILLUMINATED--WILL NOT RESET-- CAME ON AT LEVEL 33K REPLACED PRECOOLER CONT VLV PER 36-12-02. CHECKS GOOD ROTABLE PARTS CHANGE WAS INDICATED - TT 1380503 /N OFF 05309 VALVE, PRECOOLER OFF 29-3617-9-0001 5309 ON 29-3617-9-0001 4648.