As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER SHUTDOWN LT ENGINE VALVE REMAIN ILLUMINATED. LT ENGINE VALVE LIGHT EXTINGUISHED ON ITS OWN. PERFORMED DRY MOTOR AND IDLE RUN, IAW AMM 71-00-00. COULD NOT DUPLICATE FAULT. ENGINE PARAMETERS READ NORMAL. NO FAULTS NOTED AT THIS TIME.