As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EQUIPMENT COOLING AT ALTITUDE (390) RAN CHECKLIST EQUIP COOLING CAME BACK. ALSO FIU LEFT AND CAPTAIN`S DISPLAYS FLASHED. FOUND CMC MESSAGE 21411 FOR E/E RACK DELTA PRESSURE SWITCH FAILED. R & R THE DIFFERENTIAL PRESSURE SWITCH IAW AMM 21-58-09. SYSTEM TEST PASSED IAW AMM 21-58-00-735-026. EQUIPMENT COOLING CMC GROUND TEST PASSED IAW AMM 21-58-00-705-001. PERFORMED SYSTEM TEST OF IDS IAW AMM 31-61-00-705-793. ALL INDICATIONS NORMAL.