As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACRID/PUNGENT SMELL FROM LEFT PACK EYE IRRITATION AS WELL. SMELL DECREASED/ABATED WITH PACK OFF. **OII 1** ++ REVERSED DMP 21-51-1-1. AFTER COMPLETION OF LEFT ENGINE CHANGE CLEARED DUCTING PER MM 21-20-21-102-030. SYSTEM OPERATES NORMALLY PER 21-51-00/501. NO OIL SMELL IN COCKPIT WITH ENGINES RUNNING AND PACKS RUNNING AT ANY POWER SETTINGS.