As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMBOUT THROUGH 18,000 FT, RT PACK LIGHT ILLUMINATED, RAN QRH, LIGHT RESET AND ILLUMINATED AGAIN. ACFT GROUNDED. PERFORMED RT PACK ZONE TEMP BITE VARIOUS TIMES IN VERIFY FOUND RT TEMP CONTROL VALVE FAULTED. REF FIM 21-62, TASK 801. REPLACED RT PACK TEMP CONTROL VALVE IAW AMM 21-50-10. BITE TEST SUCCESSFUL NO FAULTS FOUND. LEAK TEST GOOD.