As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING T/C 78273000 FOUND NR 2 ENGINE FAULT MESSAGE NR: 75-30802 T25 SIGNALS DISAGREE. SHORT TIME FAULT. DEFERRED PER T/C 78-273000. GROUNDED-YES. REMOVED PT25 SENSOR, REF B737-900 AMM 73-21-02-000-801-F00. INSTALLED T25 SENSOR, REF AMM 73-21-02. EEC GROUND TEST PASSED. AFTER ENGINE RUN FAULT MESSAGE HAS NOW MOVED OFF FLT LEG 0, GROUND VERIFICATION PASS, REF B737-900 FIM 75-33 TASK 805.