What was found
UPON APPROACH INTO SBA, EXTENDED GEAR, INDICATIONS SHOW THREE GREENS AND A RED LIGHT IN HANDLE. CONSULTED CHECKLIST, FOUND GEAR HANDLE WOULD NOT RAISE AND CIRCUIT BREAKER POPPED. PUSHED -J- HANDLE DOWN, CIRCUIT BREAKER IN, AND RAISED HANDLE - GEAR AND DOORS UP AND CLOSED. ATTEMPTED ANOTHER GEAR CYCLE, CIRCUIT BREAKER POPPED - NO GREEN - ONLY RED LIGHT IN HANDLE. PERFORMED EMERGENCY GEAR EXTENSION, GEAR AND DOORS DOWN AND CLOSED, MADE EMERGENCY LANDING VNY.