As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, A/C COCKPIT TEMP UNCONTROLLABLE ON COLD SIDE, AND EXTREMELY NOISY TO THE POINT CREW COULD NOT HEAR EACH OTHER. REMOVED AND REPLACED LEFT PACK ACM. FOUND IT FROZEN WOULD NOT SPIN. REPLACED LEFT ACM PER MM REQUIRES OPS AND LEAK CHECK EMP 486492. LEAK CHECK AND OPS CHECK OK. (M)