As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUEL SMELL NOTICED IN ENVIRONMENTAL SYSTEM WITH BLEEDS ON APU OR ENGINE. INSPECTED ECS SYSTEM AND FOUND LEFT AIR CYCLE MACHINE TO BE LEAKING OIL SEVERELY. NO OIL IS LEFT IN ACM. REPLACED ACM PER AMM 21-51-10. OPS CHECKS GOOD. SMELL IS GONE. (M)