What was found
DEPARTED AIRPORT AT 0951 WITH VFR CONDITIONS, CLEAR SKIES 12 MILES VISIBILITY. 1.5 MILES SOUTHWEST AT AN ALTITUDE OF 500 FT AND CLIMBING, HEARD A LOUD REPORT ASSOCIATED WITH A HARD RT YAW AND NR DECREASING THROUGH 92 PERCENT. HAD JUST PASSED OVER A CLEAR AREA AND HAD NO SAFE LANDING AHEAD OF ME. IMMEDIATELY REDUCED COLLECTIVE, ROLLED THE THROTTLE TO FLIGHT IDLE AND ENTERED A HARD RT TURN. MADE A MAYDAY CALL ON 122.8 AND SWITCHED TO 123.07 FOR A SECOND MAYDAY CALL. AN AUTO ROTATIONAL LANDING WAS MADE TO A DRY SAND PIT WITH NO DAMAGE TO THE ACFT.