For aircraft operations, you may have applicable limitations, you may have approved data, or you could be in circumstances where you have neither. So, in the absence of limitations, nothing from the airplane certification* says that you may not operate in those conditions (*though an operating approval other than aircraft certification based may (AOC?) may). If the approved limitations say you may not operate, you may not. If you don't have data to operate, maybe you can operate, if you can figure out how, and no other (non aircraft) consideration prohibits it. If something goes wrong when you're operating outside the data, but inside limitations, you may have some explaining to do, but you were not outside the aircraft limitations.
A very common example of this is the "demonstrated crosswind value", which is required to be 0.2 of the stall speed for certification. So, during certification flight testing, 0.2 Vs was demonstrated, and that was enough. For most types, as this value is not presented in the flight manual as a limitation, you can fly in whatever wind you want, though at some point, if you go off the side of the runway, you may have to explain to the insurer. A very few types actually present this as a limitation, which means that you are bound by the number (so don't attempt to land, just fly until the wind changes there), and a few airports seem to apply the non limitation as a local restriction - though I don't know how they would enforce it!
The advice above may help you "create" some data for yourself, which is what I would do, if operation in that environment is needed, and there is no limitation to not do so...