As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT THE GATE THE RIGHT PACK LIGHT ILLUMINATED AFTER THE PACK WAS RUNNING FOR APPROX 2 MIN. THE RIGHT PACK TEMP SHOWED 90 DEGREES. REPLACED RT ACM REF AMM 21 51 04 OPS & LEAK CK'D GOOD. PERFORMED RT PACK INITIAL EVALUATION CHECK REF AMM 21 53 00 810 812 STEP 1 OF PARA E. RT A/C PACK OPERATES NORMAL AND PACK LIGHT REMAINED OUT.