As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE THE FLIGHT CREW GOT A BLEED 2 LEAK MESSAGE ON EICAS. AIRCRAFT MAKE AN UNSCHEDULED LANDING IN BUF. MAINTENANCE INSPECTED AND FOUND A LOOSE GAMAH COUPLING. THE GAMAH COUPLING WAS RE-SECURED AND A LEAK CHECK WAS PERFORMED. SYSTEM OPS CHECKED GOOD. MAINTENANCE ALSO PERFORMED AN ICE/RAIN ADJUSTMENT TEST AND SYSTEM OPS CHECKED GOOD.