What was found
AFTER TAKE OFF, RETRACTED LANDING GEAR, CENTER GEAR CUBE FLASHED RED (UNSAFE) RAN QRH CONFIG SYNOPTIC SHOWED CTR GEAR SAFE. FLASHING CENTER GEAR LIGHT APPROXIMATELY 25 MIN THEN STOPPED. NO FURTHER INDICATION PROBLEMS. ON EXTENSION OF GEAR FOR LANDING. THRU ROLLOUT AND TAXI, ALL INDICATIONS NORMAL. PERFORMED VISUAL CHECK OF WIRING HARNESS AND TARGETS FOR SECURITY AS A PERCAUTION. NO EVIDENCE OF VISUAL DAMAGE TO WIRING AND TARGETS FIRMLY SECURED. PERFORMED CENTER LANDING GEAR PROXIMITY SENSOR TEST IAW MM 32-61-16-5. INDICATIONS WERE NORMAL IAW SUB TASK 32-61-16-741-006. ACFT OK TO CONTINUE.