What was found
CLIMBING THROUGH FL200 THE NR 1 GEN OFF LIGHT CAME ON (AFTER LOSING THE NR 3 GEN ON T/O) RAN RED TABS. DISCONNECTED NR 1 GEN. TRIED UNSUCCESSFULLY TO START APU AT FL240, FL230, FL150, FL10. RETURNED TO MEM. APU STARTED ON TAXI IN. GROUND RAN ENGINES IAW DC-10 JRH CHAPT 5A. PERFORMED ENGINE GEN TEST IAW DC-10 JRH CHAPT 8. ALL TESTS PASSED. CHECKED SERVICE ON NR 1 CSD, CHECKS GOOD. STARTED APU 4 TIMES ON GROUND IAW DC-10 JRH CHAPT 3. ALL STARTS CHECKED GOOD. NO FAULTS FOUND AT THIS TIME. OK FOR CONTINUED SERVICE.