As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT PACK LIGHT ILLUMINATED DURING CLIMBOUT PASSING 18,000FT. RESET OK. ACFT GROUNDED. ACCOMPLISHED PACK\ZONE TEMP CONTROLLER BITE PROCEDURE REF AMM 21-62, TASK 801. NO FAULTS SOUND. ACCOMPLISHED FIM 21-53-806, NO DEFECTS FOUND. ACCOMPLISHED RT HEAT EXCHANGER CLEANING REF T/C 78121000 OK FOR CONTINUED SERVICE.