What was found
FWD ENTRY DOOR LIGHT CAME ON DURING TAKEOFF, EXTINGUISHED ON ITS OWN. PSEU FORWARD ENTRY DOOR SENSOR IS TARGET FAR DURING TAKEOFF, REF FIM 52-20 TASK 80, VERIFIED PROPER RIGGING OF SWITCH S199, IS ADJUSTED LOWER THAN 0.140 AT 0.105. NO HISTORY, INTERMITTENT. WIRING CHECKS ALL GOOD IN FIM 52-20 TASK 801. SUSPECT PROX SENSOR MIGHT BE DETERIORATED, DISCONNECTED GROUND AND APPLIED 1000VDC, COIL HAS 2 MILLIAMP LEAKAGE, TWICE LIMIT OF OVERHAUL IAW CMM 24-09-08. DISCONNECTED SWITCH AND PERFORMED INSULATION TEST FROM PSEU TO DOOR, NO FAULTS, STRONG 500M OHM. REPLACED PROX SWITCH IAW AMM 52, REPLACED S199 IAW AMM TASK 52-71-11-400-801, OPS CHECKED GOOD.