As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED THE AIRCRAFT WOULD NOT ACCEPT CLIMB MODE UNTIL APPROX 7000FT, NORMAL AFTER THAT. ON APPROACH AT 3000 FT. SELECTED T/O MODE AND AIRCRAFT STUCK IN T/O RESERVE UNTIL LANDING. MAINTENANCE INSPECTED AND REPLACED CONNECTOR 10584 FOR NR 2 ENGINE RESISTOR MODULE. OPERATIONAL CHECKS WERE GOOD.