Cessna 208B Caravan, Roosevelt Roads, Puerto Rico, April 12, 2005–On a flight from Vieques, Puerto Rico, to San Juan, Caravan N1241X experienced a total loss of engine power about 20 minutes after takeoff. The pilot landed at Roosevelt Roads Naval Station. The U.S.-registered airplane is owned by First Bank of Hazelwood, Mo., and was being operated by MN Aviation, San Juan, as a Part 135 scheduled domestic passenger flight. The ATP pilot and three passengers were not injured. VMC prevailed and a VFR flight plan was activated.