An Attempt to Characterize the Frequency, Health Impact, and Operational Costs of Oil in the Cabin and Flight Deck Supply Air on U.S. Commercial Aircraft – Judith T. L. Murawski and David S. Supplee

The potential for heated engine oil and hydraulic fluid to contaminate the aircraft air supply due to maintenance, operation, and design failures or deficiencies is an ongoing problem that has been documented in the aviation industry since the introduction of the “bleed air” air supply system in the 1950s[1,2]. With the bleed air design, outside…