The 46-year-old is found "exhausted" after falling from a cruise ship, 60 miles off the coast of Croatia.
A 27-year-old man, who lives locally. has been arrested in connection with the attack.
Innes Powell and another pilot were fatally injured during a competition in Macedonia.
Multi-millionaire tycoon says he donated because "we have a genuine chance to turn this around".
Merseyside Police and Liverpool Council advised women not to become vulnerable to a sex attack.