What was found
THE LT DC GEN OFF L AMBER CAS MESS APPEARED RIGHT AT ABOUT 90-100 KTS ON TAKE OFF ROLL, ARES DATA SENT TO TEXTRON ON 1/8 AT 1645.EZ1/8 PERFORMED ENG RUNS VERIFIED NR 1 GEN WILL NOT COME ONLINE, PERFORMED GCU FAULT CHK IAW AMM 24-30-45 NOTED SYS LIGHT ON STEADY, INDICATES BUILD UP GROUND FAULT. SYNOPTIC SHOWS 29V AVALLABLE AT LT GEN BUT 0 AMPS, CYDING GEN RESET SWITCH HAS NO EFFECT ON THE FALL. ML 1/8 REPOSITLONED NR 1 ENG GCU TO APU POSI & APU GCU TO NR 1 POS IAW AMM 24-30-45. PERFORMED GEN OPS CHK IAW AMM 80-10-20, NO CHANGE TO DEFECT. RETURNED GCUS TO ORIG POS. REPOSITIONED LT GEN LINE CONTACTOR TO RT POS & RT GEN LINE CONTACTOR TO LT SIDE IAW AMM 24-60-10. PERFORMED GEN OPS CHECK IAW AMM 80-10-20 WITH NO CHANGE TO DEFECT. RETURNED GEN IINE CONTACTORS TO ORIG POS. REPOSITLONED LT POWER DIST PCB TO RT POS & RT POWER DIST PCB TO LT POS IAW AMM 24-60-35. PERFORMED GEN, OPS CHECK IAW AMM 80-10-20, RT GEN WILL NO LONGER COME ONLINE. RETURNED POWER DIST PCBS TO ORIG POS. R & R LT POWER DIST PCB NZ103 IAW AMM 24-60-35. OPS CHKD GOOD, NO FURTHER ACTION REQUIRED.