What was found
PDIS 730 32-20 7278 10NOV21 MEM OPEN U NOSE GEAR DOOR LIGHT DID NOT GO OUT AFTER GEAR RETRACTED. ALL GEAR INDICATIONS AGREED BOTH ON DASH AND OVERHEAD. COMPLIED WITH QRH. MAX SPEED WAS 230 KTS, LESS THAN 0.5 MACH. LIGHTS WENT OUT UPON GEAR EXTENSION. FACT 11NOV21 REMOVED AND REPLACED MICROSWITCH 38GB (SYSTEM #1, RIGHT) AND 37GB (SYSTEM #1, LEFT) REFERENCE AIRBUS A300-600 AMM 32-00-00-04. CARRIED OUT A GROUND DOOR OPENING AND CLOSING FUNCTIONAL TEST AND A NOSE GEAR TEST (MAIN GEAR ON GROUND) REFERENCE AIRBUS A300-600 AMM 32-31-00-05. FUNCTIONAL TEST GOOD.