As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE THRUST REVERSER DISAGREE MESSAGE ON TAKE OFF ROLL (C/W TASK 78-31-01-980-801-A). REACTIVATED ICU AND REMOVED LOCK PINS. T/S E1 REV DISAGREE MSG IAW FIM 78-34-00-810-803A. R&R'D RELAYS KO641,K0397,AND K0323 IAW SWPM 20-13-02. OPS CK OF TR GOOD. NO MESSAGES ON EICAS OR CMC. OK FOR SERVICE.