Spirit is flying into a lot of headwinds right now.Spirit Airlines (SAVE -10.76%) trimmed its outlook for the second quarter, just hours after an analyst warned the company could have trouble remaining airborne.Investors are headed for the exits, sending Spirit shares down 11% in late afternoon trading.A rough journey from hereSpirit is flying into a lot of headwinds right now. The entire airline industry is adjusting to softening demand trends.Spirit has some company-specific issues including rebounding af ...