What was found
ON DEPARTURE WHEN SELECTING GEAR UP, NOSE DOOR OPEN MASTER WARNING ACCOMPANIED WITH GEAR DISAGREE MASTER WARNING. WAITED 20 SECONDS PER THE MELMAIN GEAR WAS UP AND NOSE STAYED DOWN. RAN QRH MAIN GEAR CAME DOWN AND LANDED AT NEAREST SUITABLE AIRPORT. (FLIGHT 4607 - FILED CLOSED) FOUND PUMP 3B NOT PROVIDING SUFFICIENT PRESSURE / REMOVED AND REPLACED ACMP 3B / REF AMM 29-12-03 / FULL GEAR SWING REQUIRED PLEASE REFERENCE AML 675756