What was found
AIRCRAFT 8924B TOOK OFF FROM IND & PUT GEAR HANDLE TO THE UP POSITION & INSTANTLY RECEIVED A GEAR DISAGREE MSG. FOLLOWED QRH & DID NOT DECLARE AN EMERGENCY. ACFT RETURNED SAFELY TO IND, WHERE A GEAR DOWN MEL WAS APPLIED & THEN ROUTED TO CVG FOR REPAIR. GEAR DISAGREE AFTER TAKEOFF. LDW 39000 LBS, RATE OF DESCEND 300 FEET A MIN. COMPLIED WITH PA 05-018K SCENARIO 1. SERVICED NOSE STRUT ASSEMBLY IAW AMM 12-12-32. REPLACED OLEO CENTERING & EXTENSION BRACKET IAW AMM 32-30-00, NO DEFECTS NOTED AT THIS TIME. THIS CLEARS DM 4862.