What was found
PHL - FLT 633 - CLIMBING THROUGH 15,500 FEET, THE CREW HEARD A LOUD BANG, FOLLOWED BY FLUCTUATION IN THE CAPTAIN'S AIRSPEED INDICATION, AND THE EICAS MESSAGES 'RUDDER RATIO' AND 'ELEV ASYM' AND A MACH AIRSPEED DISAGREE INDICATION. THE FLIGHT RETURNED TO PHL AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND THAT THE RADOME HAD COLLAPSD AND THAT THE NR 2 AUX PITOT TUBE WAS BENT. THE RADOME AND PITOT TUBE WERE REPLACED. (M)