I am a Bee Gees' fan too . Andy Gibb did not die in a plane crash
quote from online news
"And his star may have risen even higher were it not for the prodigious cocaine habit that derailed his career and contributed to his premature death. With his heart greatly weakened from years of cocaine abuse, Andy Gibb succumbed to an inflammatory heart virus on March 10, 1988. He was only 30 years old."