As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT PACK LIGHT ILLUMINATED, WILL NOT RESET, SUPPLY DUCT TEMP 100. GROUNDED - YES. VERIFIED ALL C/B'S ASSOCIATED WITH RIGHT PACK SYSTEM ALL CLOSED. PERFORMED BITE TEST FOR ZONE TEMP CONT 2 FOUND TCV FAULT AS PER AMM TASK 21-61-00-700-806-002. 60047 07/17/2023. REMOVED & REPLACED TEMP CONTROL VALVE REF. AMM 21-51-10. PULL & RESET 3 C/B. PART VERIFIED FOR ETOPS A/C REF. AIPC 21-51-10-4. OPS CHECK GOOD. A/C OK FOR SERVICE.