What was found
GEN 1 OFF BUS YELLOW CAS ILLUMINATED - YELLOW GEN 1 OFF BUS CAS ILLUMINATED IN FLIGHT ASSOCIATED WITH BAD ENGINE VIBRATION. AIRCRAFT WAS CLIMBING THROUGH 30,000 AT CLIMB POWER. VIBRATION WAS BAD ENOUGH THAT PASSENGERS CAME TO COCKPIT TO ASK WHAT WAS HAPPENING. //SIGNOFF//REMOVED #1 STARTER/GENERATOR TO FIND IT INTERNALLY FAILED. REPLACED STARTER GENERATOR AND CARBON SEAL JAW EMB 505 AMM MPP 24-31-01-400-801-A AND PWC EMM 72-50-03-400-805. OPERATIONAL CHECK SATISFACTORY