As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LGA-FLIGHT 3909 CREW REPORTED OIL SMELL AND SMOKE INTERMITTENTLY COMING FROM BOTH APU BLEEDS ON GROUND AND ENGINE BLEEDS IN FLIGHT. MAINTENANCE VERIFIED OIL SMELL AND SMOKE FROM APU BLEED. RAN ENGINE BLEEDS, CLEARED TUBING OF OIL AND SMELL SUBSIDED. MEL 49-01 ISSUED FOR APU. AIRCRAFT RETURNED TO SERVICE.