EC135 PLT EXPERIENCES UNUSUAL TORQUE REQUIREMENTS AND PERFORMS A RUN-ON LNDG WITH HARD IMPACT.

Narrative

AFTER LOADING; I TOOK OFF AND NOTICED THAT I NEEDED TO PULL MAX TORQUE AVAILABLE TO GET OUT OF THE HELIPAD. I THOUGHT IT WAS UNUSUAL EVEN TAKING INTO ACCOUNT THE TEMP OF THE DAY AND THE WIND DIRECTION. THIS WAS OUTSIDE MY COMFORT ZONE. I INFORMED THE ORIENTEE THAT AFTER THIS MISSION WE WOULD BE UNABLE TO TAKE HIM DUE TO THE TOTAL WT OF THE ACFT. THE APCH INTO THE HOSPITAL TOOK EXTRA VIGILANCE BECAUSE I KNEW WE WERE HVY. THE APCH WAS UNEVENTFUL EXCEPT THE LAST 100 FT I WAS IN THE RED ON THE TORQUE READOUT. ON DEP; AGAIN I WAS IN MAX TORQUE LIMITS. I WAS CLRED TO LAND ON RWY 13 AND HOLD SHORT OF RWY 28. I WAS ON A 150 DEG HDG AND CUT THE CORNER OF THE RWY TO STOP N OF THE INTXN OF RWY 28 AND RWY 13. THE WINDS WERE APPROX 180-190 DEGS ACCORDING TO THE WINDSOCK. I INITIATED MY APCH BY REDUCING COLLECTIVE WITH A LITTLE AFT CYCLIC. NEXT; I NOTICED A MASTER CAUTION LIGHT AND THE RPM LIGHT ON AND A GONG. I CHKED THE ROTOR GAUGE AND SAW THE ROTOR WAS OVERSPDING. MY REACTION WAS TO ADD FORWARD CYCLIC AND PULL IN COLLECTIVE. THE ROTOR CAME BACK WITHIN LIMITS BUT THE ACFT CONTINUED TO DSND AND ACCELERATE. DURING THIS TIME; TWR CALLED AND ASKED IF I KNEW I WAS TO HOLD N OF RWY 28. I DO NOT RECALL RESPONDING. WITH THE ACFT DSNDING AND ACCELERATING; I KNEW I WAS GOING TO OVERSHOOT RWY 28 WITH AN ACFT TAKING OFF. I TURNED TO THE L BECAUSE I SAW MORE OPEN GND HOPING THE ACFT WOULD BEGIN TO LEVEL OUT AND CLB. BUT IT DIDN'T. I CONTINUED TO PULL COLLECTIVE AND I KNEW THE ACFT WAS GOING TO HIT THE GND. I INFORMED THE CREW THAT WE WERE GOING TO LAND HARD AND COMMITTED TO A RUN ON LNDG. THE ACFT STUCK HARD BUT LEVEL AT ABOVE 40 KTS.