What was found
NOTICED LT ENGINE SPAR VALVE ILLUMINATED BRIGHT BLUE AT 5000 FT DURING APPROACH. LIGHT WENT OUT AT 2,000 FT. ACFT GROUNDED. CREW STATED ALL NR 1 ENGINE INDICATIONS WERE NORMAL. ACCOMPLISHED GVI OF NR 1 SPAR VALVE CONNECTOR, NO DEFECTS FOUND. VALVE OPS NORMAL IAW MM 28-22-00. DUE TO HISTORY REQUIRES NR 1 SPAR VALVE ACTUATOR, 44752-07-14-2014. REMOVED NR 1 LT ACTUATOR SPAR VALVE AND INSTALLED NEW IAW AMM 28-22-11-000-804/-400-804. OPS CK GOOD IAW AMM 28-22-00-710-801.