Extract from the EASA PDF document
Article 2
According to the existing literature and study reports, the Agency understands that a causal
relationship between the health symptoms reported by some stakeholders (some pilots, cabin
crews or passengers) and oil/hydraulic fluid contamination has not been established. As there
is no conclusive scientific evidence available, the Agency is not able to justify a rulemaking
task to change the existing designs or Certification Specifications.
No scientific evidence
Yet this same agency wants to change the rules of flight time while scientific studies are in the opposite direction of that agency decisions
This agency takes into account scientific advice only if they are consistent with its interests and so the interests of the industry and airlines