As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNUSUAL ODOR COMING FROM BLEED SYS BELOW 1000' THROUGH ROLLOUT AND INTO TAXI. ODOR APPEARS TO COME FROM THE NR 1 BLEED SYS. COMPLIED WITH MULTIPLE TROUBLESHOOTING STEPS, CONTAINED IN T/O 201301041816, AND ALSO WO 146393, NR 00002. CHECKED NUMEROUS SYS AND GROUND STUDS WITH NO DEFECTS. OPS CHECK FLIGHT FAILED. CURRENTLY OUT OF SERVICE FOR REPAIRS.