As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NUMBER 2 BLEED TRIP OFF ILLUMINATED AFTER TAKE OFF. FOLLOWED QRH GUIDANCE AND ATTEMPTED A TRIP RESET. BLEED TRIP OFF LIGHT EXTINGUISHED, BUT RE-ILLUMINATED AFTER A FEW SECOND. GROUNDED - YES. REMOVED AND REPLACED PRECOOLER CONTROL VALVE SENSOR & OVER TEMPERATURE SWITCH REF. B737-900 AMM 36-11-08, 36-12-03.