As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3243 DISC: AFTER STARTING ENG #1 ON APU BLEED HAD A ACRID SMOKE AROMA. START CONDUCTED WITH SLIGHT TAILWIND. AROMA SEEMED TO CLEAR BUT REAR OF A/C REPORTED HEADACHE AND NAUSEA. C/A: TROUBLESHOOT PER A320 TSM 05-50-810-831-A. CORRECTIVE ACTION TYPE 10. RAN APU AND ENGINES TO BLEED SHIFT WITH NO ABNORMAL ODORS PRESENT. PACKS RAN FROM APU AND ENGINE BLEED. ALL OPS NORMAL. (LP: 6562238)