What was found
CREW REPORTED AN OILY SOUR SMELL COMING FROM THE LEFT FLOW DURING FLIGHT. MAINTENANCE INSPECTED THE LEFT COOLING TURBINE AND FOUND RESIDUAL OIL IN THE HOUSING. DRAINED RESIDUAL OIL AND PERFORMED GROUND RUNS.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CREW REPORTED AN OILY SOUR SMELL COMING FROM THE LEFT FLOW DURING FLIGHT. MAINTENANCE INSPECTED THE LEFT COOLING TURBINE AND FOUND RESIDUAL OIL IN THE HOUSING. DRAINED RESIDUAL OIL AND PERFORMED GROUND RUNS.