As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REF LOG 60152528 LEFT PACK TRIP. GROUNDED - YES. REF B737-800 FIM TASK 21-53 TASK 820 STEP 820 F 4 REMOVED L/H ACM REF 21-51-04-000-802-002 M C. 50340 11/17/2021 INSTALLED L/H ACM PER AMM REF 12-51-04-400-802-002 THROUGH PG. 7 STEP (I). ALSO INSTALLED HIGH PRESSURE WATER SEPARATOR MIX MUFF PER B737-800 AMM REF 21-51-17-400-801 THROUGH PG 3 (H). P.BOMAR 24756 11/18/2021. COMPLETED INSTALLATION OF L/H AIR CYCLE MACHINE REF 21-51-04-400.