What was found
ON APPROACH INITIAL GEAR EXTENSION DID NOT SHOW NOSE GEAR GREEN LOCKED INDICATION BUT RED UNLOCKED. RAN QRH AND ATTEMPTED MANUAL GEAR EXTENSION. ON FIRST ATTEMPT MANUAL DID NOT WORK. WENT INTO E&E COMPT. GREEN INDICATION NOT VISIBLE. SECOND ATTEMPT TO INSURE MANUAL COMPLETED 20 TURNS CLOCKWISE, THEN AFTER 30-60 SECONDS NOSE GEAR FINALLY SHOWED DOWN AND GREEN. DECLARED AND EMERGENCY AND LANDED. INSTALLED NOSE LANDED TELESCOPIC STRUT AMM 32-31-24-04 STEP 1B (4). COMPLETED FREEFALL AND NORMAL NOSE GEAR FUNCTIONAL AND OPS CK TEST REF AMM A310-300-32-31-24-04. ALL TEST WERE NORMAL.