If your A/C is certified to a certain limit and you willingly exceed this limit
I am unaware that the aircraft is certified to this
limit. If it were, then such a limit would be in the FCOM "Limitations" section. I have all sorts of limits in there, some related to wind... but nothing about slides
In short, if the slides have a 25K limit, then so does the aircraft for passenger carrying operations
I think you may be alluding to a JAR Ops test being conducted at 25K or similar. That might be a "certification requirement", it is not an aircraft limit however if the Flt Crew don't have it as such
IMHO of course
NoD