ASRS report 196637

Narrative

ON DEC/MON/91; I WAS THE PIC OF A PART 91 FLT; DEPARTING TUCSON; AZ; ENRTE TO HAYWARD; CA; WITH INTERMEDIATE STOPS IN EAGLE; CO; AND SALINAS; CA. THE FLT WAS CONDUCTED AND CONCLUDED UNEVENTFULLY. ON DEC/TUE/91; I WAS INFORMED VIA COMPANY CHANNELS THAT MY COPLT ON THE AFOREMENTIONED FLT; HAD RECEIVED FAA NOTIFICATION THAT HIS PLT'S LICENSE HAD BEEN REVOKED. AT THE TIME OF MY FLT WITH HIM; I WAS GIVEN A PART 91 FLT RELEASE BY COMPANY DISPATCH AND NOTHING WAS MENTIONED; AT THAT TIME; OF A POSSIBLE PROBLEM WITH THE STATUS OF MY COPLT'S AIRMAN'S CERTIFICATE. UNDER THE GUIDELINES OF OUR GENERAL OPS MANUAL (BY WHICH MY COMPANY OPERATES; AS WE ARE A MEMBER OF THE PROGRAM) PARAGRAPH 1.2.9 PAGE 1-15 UNDER THE SUBTITLE 'THE COMPANY'S DUTIES AND RESPONSIBILITIES' STATES 'THE COMPANY DISPATCH IS RESPONSIBLE FOR...PREFLT DOCUMENTATION OF OPERATIONAL LEGALITIES FOR ALL FLTS OPERATED BY THE COMPANY; INCLUDING AT LEAST...CREW MEMBER QUALIFICATION.' THEREFORE; IF ANY ACTION WAS PENDING AGAINST MY COPLT'S CERTIFICATE AT THE TIME I WAS FLYING WITH HIM; I WAS UNAWARE AS TO THE SEVERITY OF ANY SUCH ACTION; ANY TIME LINE AS TO WHEN AN ACTION WAS OR HAD BEEN PLANNED AGAINST HIM BY THE FAA; AND I OPERATED THE FLT AS PER THE FARS; COMPANY COM; AND GOOD JUDGEMENT.; I was pilot flying executing a takeoff on runway XXR from taxiway intersection 1 in ZZZ. I ensured the throttles were set for takeoff after selection of auto throttles. The CA assumed command of the throttles and shortly after that point called for a rejected takeoff at 90 KTS for a L GEN DRIVE EICAS. I maintained centerline and ensured a proper change of aircraft control was accomplished and the CA completed the reject. I then made the necessary calls within the cockpit and with ATC. We cleared the runway to run the checklist for rejected takeoff and generator issue. We experienced BTMS (Brake Temperature Monitoring System) max temperature of 5 while coordinated with ATC