safety
Unions demand investigation into odorless APU oil masking cabin fumes
The International Transport Workers Federation is calling for an urgent safety review of a new auxiliary power unit engine oil designed to eliminate cabin odors. Eastman Chemical Company markets its Turbo Oil 2330 as a way to prevent flight delays associated with foul-smelling fume events. However, aviation unions argue that removing the distinct scent simply masks hazardous oil leaks rather than preventing them. For flight crews, taking away this crucial olfactory warning could lead to undetected exposure to harmful vaporized oil in the bleed air system.