Demonstrated Crosswind is the point at which YOU become the test pilot.
Maybe your test works out - maybe it doesn't. What's your "Right Stuff" component?
If an accident or incident is a loss of control, of a type that suggests crosswinds were a factor (runway excursion, for example), investigators will most certainly
look at the actual conditions, compared to the aircrafts's published characteristics.
And may well include the winds and aircraft procedures as factors in the accident - if not the primary cause.
ASN News » Report: Fokker 50 runway excursion when tired crew lands outside crosswind limits
Accident: Carpatair AT72 at Rome on Feb 2nd 2013, runway excursion on landing, main and nose gear collapsed
In the second, expressed as:
"
- the conviction of the commander that due to his experience and skills he could still manage a safe landing despite critical winds."
Ooops - wrong.