TOKYO (AFP) - Japan's Prime Minister Naoto Kan survived a no-confidence vote Thursday after pledging to step down once the country is on the road to recovery from the March 11 quake and nuclear disaster. The promise to hand over power to a younger generation appeased internal party rebels who had threatened to bring down Kan, the country's fifth premier in as many years, days before his first anniversary in the job. The motion brought by the opposition conservative Liberal Democratic Party (LDP) and its allies was defeated by a comfortable 293-152 margin after most lawmakers of the centre-left ruling party fell into line behind Kan.