As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT HAND PACK LIGHT ILLUMINATED ON RECALL. EXTINGUISHES WITH MASTER CAUTION RESET. GROUNDED - YES. ACCOMPLISHED PACK/ZONE TEMPERATURE CONTROLLER BITE TEST REF B737-800 AMM 21-61-00-700-806-002. R/H PACK BITE TEST FAILED FOR TCV. FOUND TCV TO BE SEIZED UP. REMOVED AND REPLACED TCV REF AMM 21-51-10-000/400-801. ACCOMPLISHED BITE TEST AGAIN, TEST PASSED. LEAK TEST PASSED. ALL GROUND VERIFICATION TESTS GOOD.