IN A HELI ON A STEEP APCH FOR A PRACTICE NIGHT LNDG THE RPTR IS SURPRISED TO SEE A TOMAHAWK WITHOUT POS LIGHTS IN CLOSE PROX TO WHERE HE PLANNED TO LAND AND PULLED UP TO BALK THE LNDG.

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ON A BEAUTIFUL FALL EVENING (DUSK) I DECIDED TO BRUSH UP ON MY HELI TECHNIQUE AND REGAIN NIGHT CURRENCY IN BELL 206 JETRANGER. LAUNCHED FROM IND TO EAGLE CREEK JUST 4 MI N FOR SOME VFR PATTERN WORK. SEVERAL BRIGHT SINGLES WERE WORKING THE L-HAND PATTERN AT EAGLE CREEK TO RWY 21. I ANNOUNCED ON UNICOM; ENTERED L TFC AND MADE 1 NORMAL APCH TO THE ADJACENT GRASS AND TXWY. WITH 4 OR MORE ACFT AROUND; I THEN SWITCHED TO SOME NIGHT WORK TO THE W GRASS AND TXWY ADJACENT TO RWY 21. ALL WAS NORMAL ON THE NEXT APCH WITH SEVERAL ACFT AROUND. ON MY 3RD APCH I EXECUTED A STEEP APCH TO THE TXWY; ANNOUNCING ON UNICOM. I COULD SEE SEVERAL ACFT HOLDING FOR TKOF AND 1 ON SHORT FINAL. ABOUT 50 FT AGL IN A STEEP APCH; AN ACFT OPERATING WITHOUT NAV LIGHTS OR BEACON APPEARED IN THE LOWER L BUBBLE WINDOW; ILLUMINATED BY THE LNDG LIGHTS. I IMMEDIATELY SWERVED R FURTHER OVER THE GRASS AND EXECUTED A GAR. HE NEVER SAW ME. LESSONS: 1) WATCH FOR THOSE ACFT WITHOUT LIGHTS. 2) STAY AWAY FROM BUSY VFR ARPTS AT DUSK IN A HELI.