Embodiments of the subject matter described herein relate generally to generating multiple, multivariant prognostic data reports in aircraft. A plurality of data collection requests, one from each of a plurality of stakeholders, is received at the aircraft. A unique portion of onboard memory is associated with each of the data collection requests. Concurrently, according to the associated data collection requests, parametric data is collected and recorded as a report into each one of the unique portions of memory associated with each data collection request.