As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: INTERMITTENT ODOR DURING FIRST 15 MIN OF FLIGHT STRONGEST IN FLIGHT DECK AND FORWARD CABIN QUICK REFERENCE HANDBOOK ODOR CHECKLIST TABLE CHARACTERISTICS MILD/MODERATE TRANSIENT CATEGORY (BURNING RUBBER SCENT). REMOVED AND REPLACED NUMBER 1 ENGINE.