As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER T/O GEAR WOULD NOT RETRACT IN EITHER POSITION. PITCH TRIM NR 1 TRIPPED AND WOULD NOT RESET. AUTO THROTTLE LEVERS WERE ON BUT THROTTLES WOULD NOT RESPOND. CAPT ADF/RMI FAILED. RETURNED TO MSY. ON LANDING THRUST REVERSE WOULD NOT DEPLOY CAPT ADC FAILED, AND NOSE WHEEL STEERING WAS INOP. CLEARED THE RUNWAY VIA HIGH SPEED TURNOFF. TOWED TO RAMP. PITOT HEAT OVERHEAT AFTER LANDING. AIRCRAFT PRESSURIZED ON GROUND AND REQUIRED MANUAL DEPRESSURIZATION. GROUND PROXIMITY UNIT FAILED SELF TEST.