What was found
FLT 6533 - WHEN THE GEAR WAS SELECTED DOWN, THE NOSE GEAR DID NOT EXTEND. AFTER PULLING THE LANDING GEAR MANUAL RELEASE HANDLE, THE NOSE GEAR EXTENDED AND INDICATED DOWN AND LOCKED. REPLACED THE NOSE GEAR UPLOCK ASSY IAW MM 32-33-05. OPS CHECK GOOD, PN 11600-103, SN/OFF NGL/0673/02.