Narrative:

I entered the standard traffic pattern in hana at 800 ft. We made multi-communication calls, starting 20 mi out on 122.9. We saw a helicopter which seemed to be above the traffic pattern and never made any calls. He did not seem to land. When we turned final, he was in front of us and in line with the runway, and still on 1000 ft. We were 500 ft. Between the checklists, callouts, the first officer continued to challenge the rotorcraft on the radio to make sure he was not landing, but there was no response. As I initiated the flare, the helicopter initiated a 'automatic rotation.' from this point on, I had to land because I was never sure what his next move was going to be. The helicopter was coming at the narrow grass strip next to the runway, and ended up 500 ft in front of the plane rapidly decelerating. The distraction made our touchdown harder than usual and as we slowed down with maximum braking, the helicopter moved slightly right towards our centerline. We had to go all the way to the right of this 100 ft wide strip in anticipation of his moves. As we passed him at 70 ft, we finally had eye contact. When we taxied off the runway, the helicopter started making traffic calls and continued his practice. I think I should have regarded the helicopter as landing traffic, if only for the fact that he was within 2 mi of the runway. In hawaii, radio communication _ especially on 121.9 _ has become unwritten, mandatory, but I was counting on it too much that day.

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Original NASA ASRS Text

Title: AN ACR C402 FLC RPTS THAT THEY HAD AN NMAC WITH A HELI DURING LNDG. AS THE C402 STARTED ITS FLARE THE HELI STARTED AN AUTOROTATION TOWARD A GRASS STRIP NEAR TO THEIR RWY CAUSING THE RPTR TO ROLL OUT ALONG THE EDGE OF THE RWY TO AVOID CONTACT.

Narrative: I ENTERED THE STANDARD TFC PATTERN IN HANA AT 800 FT. WE MADE MULTI-COM CALLS, STARTING 20 MI OUT ON 122.9. WE SAW A HELI WHICH SEEMED TO BE ABOVE THE TFC PATTERN AND NEVER MADE ANY CALLS. HE DID NOT SEEM TO LAND. WHEN WE TURNED FINAL, HE WAS IN FRONT OF US AND IN LINE WITH THE RWY, AND STILL ON 1000 FT. WE WERE 500 FT. BTWN THE CHKLISTS, CALLOUTS, THE FO CONTINUED TO CHALLENGE THE ROTORCRAFT ON THE RADIO TO MAKE SURE HE WAS NOT LNDG, BUT THERE WAS NO RESPONSE. AS I INITIATED THE FLARE, THE HELI INITIATED A 'AUTO ROTATION.' FROM THIS POINT ON, I HAD TO LAND BECAUSE I WAS NEVER SURE WHAT HIS NEXT MOVE WAS GOING TO BE. THE HELI WAS COMING AT THE NARROW GRASS STRIP NEXT TO THE RWY, AND ENDED UP 500 FT IN FRONT OF THE PLANE RAPIDLY DECELERATING. THE DISTR MADE OUR TOUCHDOWN HARDER THAN USUAL AND AS WE SLOWED DOWN WITH MAX BRAKING, THE HELI MOVED SLIGHTLY R TOWARDS OUR CTRLINE. WE HAD TO GO ALL THE WAY TO THE R OF THIS 100 FT WIDE STRIP IN ANTICIPATION OF HIS MOVES. AS WE PASSED HIM AT 70 FT, WE FINALLY HAD EYE CONTACT. WHEN WE TAXIED OFF THE RWY, THE HELI STARTED MAKING TFC CALLS AND CONTINUED HIS PRACTICE. I THINK I SHOULD HAVE REGARDED THE HELI AS LNDG TFC, IF ONLY FOR THE FACT THAT HE WAS WITHIN 2 MI OF THE RWY. IN HAWAII, RADIO COM _ ESPECIALLY ON 121.9 _ HAS BECOME UNWRITTEN, MANDATORY, BUT I WAS COUNTING ON IT TOO MUCH THAT DAY.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.