As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THERE WAS AN ODOR STILL NOTICABLE DURING CLIMB, CRUISE WAS FINE, ALSO NOTICED INTERMINAL AREA FOR APPROACH. NOT ABLE TO ISOLATE TO EITHER PACK. THE AIRCRAFT WAS GROUNDED. MAINENANCE REMOVED AND REPLACED THE NR 1 ENGINE IAW JC 33L40071003.