What was found
AIRCRAFT PROCEEDED WITH A NORMAL TAKEOFF IN VFR CONDITIONS. FOLLOWING ROTATION, AND AT APPROXIMATELY 50 TO 100 FT AGL, THE RT ENGINE LOST POWER, THE PILOT LEVELED OFF. THE AC WOULD NOT MAINTAIN ALTITUDE, PILOT CHOSE TO LAND IMMEDIATELY, WITH ADEQUATE RUNWAY AHEAD. THE AC LANDED HARD AND WITH LANDING GEAR RETRACTED, CAUSING SUBSTANTIAL DAMAGE TO THE AC. NO INJURIES WERE INVOLVED. UPON INSPECTION OF AIRCRAFT, RIGHT PROPELLER WAS FOUND UNFEATHERED, WHEN THE AIRCRAFT WAS HOISTED FOR SECURING, LANDING GEAR WAS SUCCESSFULLY EXTENDED BY USE OF THE EMERGENCY EXTENSION SYSTEM, AND LOCKED IN THE DOWN POSITION. CAUSE OF THE ENGINE POWER LOSS IS UNKNOWN AT THIS TIME. (K)