As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE "SPAR VALVE CLOSED" BLUE LIGHT CAME ON BRIGHT ON FINAL APPROACH STAYED BRIGHT UNTIL AT THE GATE. AT ENGINE SHUT DOWN (WITH THE START LEVER) VALVE LIGHT WENT TO DIM BLUE AGREEMENT POSITION. PERFORMED FIM TASK 28-22-00-810-809 NO DISCREPANCIES NOTED. MANUAL STATES THIS TO BE "INTERMITTENT FAULT". A/C GOOD FOR CONTINUED SERVICE.