As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
"VTK" ON CA ND. WENT AWAY AFTER APPROXIMATELY 20 SECONDS. GROUNDED - YES. ACCOMPLISHED LEFT FMC BITE REF B737-900 FIM 34-61 TASK 801. NO ACTIVE FAULTS FOUND. PERFORMED LEFT AND RIGHT FMC OPS TEST REF AMM 34-61-00. OPS CHK NML. GROUND VERIFICATION GOOD.