What was found
GEN 1 OFF BUS YELLOW CAS: GEN 1 OFF BUS CAS IN FLIGHT AT FL360 WITH ENGINE VIBRATION. ACCOMPLISHED QRH AND SHUT ENGINE DOWN. BLACK SOOT NOTED ON UNDER SIDE OF LEFT HAND ENGINE COWLING. // SIGNOFF// REMOVED LH STARTER GENERATOR PIN: 400SG 180Q-4 S/N: S01171XL AND INSTALLED CUSTOMER SUPPLIED OVERHAULED LH STARTER.GENERATOR P/N: 400SG180Q-4 S/N: S00915XL IAW EMB505 AMM 24-31-01 : REMOVED SEAL ASSY FACE MAGNETIC P/N: 3059820-01 NSN INSTALLED CUSTOMER SUPPLIED NEW SEAL ASSY FACE MAGNETIC P/N: 3059820-01 NSN IAW EMB505 EMM 72-60-01. NO DEFECTS NOTED.