What was found
UPON ADVANCING, THE POWER LEVERS FOR TAKEOFF, NR 3 START VALVE LIGHT ILLUMINATED, LIGHT EXTINGUISHED WHEN POWER LEVERS WERE RETARDED TO IDLE. CLEANED AND SECURED CONNECTOR AT NR 3 ENGINE STARTED VALVE, OPERATIONAL CHECK AT BLAST FENCE TAKEOFF POWER IAW MM 71-00-00 AND 80-10-00.