Final answer:
In aviation, a dispatch release is a document needed before a flight can take place. For a flight operating under Exemption 17347, additional information or documentation may need to be added to the dispatch release.
Step-by-step explanation:
In the context of aviation, a dispatch release is a legal document needed before a flight can take place. Exemption 17347 refers to a specific regulation that allows certain flights to operate with exemptions from certain rules or requirements. To answer your question, what must be added to a dispatch release for a flight operating under Exemption 17347 depends on the specific details and requirements of this exemption. Generally, it could be additional information or documentation that needs to be provided to ensure compliance with the exemption.