What was found
DURING DESCENT AT 6000 MSL, 250 KIAS IDLE THRUST ENG 2 RPM LO ALERT, FOLLOWED BY FLAMEOUT, EGT 75 DEG WITH IGNITION OVERRIDE ENGINE ACCELERATED TO NORMAL IDLE. ENGINE OPERATION DURING APPROACH, LANDING AND ROLLOUT WAS NORMAL. INSPECTED NR 2 ENG OIL MASTER CHIP DETECTOR IAW MM 79-36-01-61, NO CONTAMINATION FOUND. SYS AND FOUND CDP LINE FROM COMPRESSOR SECTION TO NR 2 ECU HAS WATER INSIDE, AND DRAIN PORT AT LOW POINT PLUGGED. OPENED CDP LINE AT ECU AND AT ENG AND BLEW DRY NIT THRU LINE TO CLEAN WATER AND DEBRIS.