As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT PACK LIGHT ILLUMINATES DURING MASTER CAUTION RECALL. GROUNDED - YES. (RESOLVED ON W/O: 1969927 TASKCARD: N/R-00003 ) ACCOMPLISHED L/H PZTC BITE AND HAD "THIS PACK TCV" FAULT ON BITE, PREV FLIGHT AND VERIFY REF FIM 21-62 TASK 830.REMOVED AND REPLACED LEFT, TCV (V139) REF AMM 21-51-10. OPERATIONAL TEST PASS. THIS CLEARS MEL 21-32B C/N:20033593 SEAMC NOTIFIED AND PLACARD REMOVED. GROUND VERIFICATION TEST SUCCESSFUL.