Sounds like you have already created the document you have not been allowed to publish, therefore it, and anything used to create it, are 'discoverable' by the plaintiffs lawyers. I wouldn't like to answer 'why did you not proceed'. In the company I work for we take flight safety and flight integrity issues very seriously and do not steer away from publication of such material. I know also other European airlines do not steer away from it, so your Company's exposure is being increased by this policy, in my opinion.