HELI PLT MAKING NIGHT APCH TO HELIPAD AT JWN IS SURPRISED TO SEE ACFT BEING TOWED ONTO PAD FOR OVERNIGHT PARKING.

Narrative

AT JOHN TUNE ARPT THERE IS A HELIPAD PAINTED ON THE ARPT APRON WHERE HELIS FREQUENTLY LAND FOR FUEL AND SVCS. I WAS APCHING THE HELIPAD FROM THE N (WINDS WERE GENERALLY LIGHT OUT OF THE S) ON A NORMAL APCH ANGLE. THE CONDITIONS WERE VERY DARK WITH NO ILLUMINATION FROM THE MOON. I HAD MADE ALL OF MY RADIO CALLS STATING MY INTENTIONS WITH NO RESPONSE FROM THE UNICOM. I WAS AT AN ALT OF APPROX 50 FT AGL WHEN I REALIZED THAT THERE WAS AN AIRPLANE BEING PUSHED DIRECTLY ONTO THE HELIPAD THAT I WAS LNDG TO. AS I ADJUSTED MY LNDG ANGLE TO LAND TO A CLR SPACE ON THE ARPT APRON; I NOTICED THAT THERE WAS A TUG PUSHING THIS DARK UNILLUMINATED AIRPLANE ONTO THE HELIPAD. THE ONLY LIGHTS THE LINE PERSONNEL HAD ON WERE THE HEADLIGHTS ON THE TUG. AFTER I LANDED AND SHUT DOWN THE HELI I WALKED OVER AND ASKED IF THEY KNEW THEY WERE PARKING AIRPLANES ON A HELIPAD. THEY COMPLAINED THAT THERE WAS NOWHERE ELSE TO TIE THEM DOWN. I ASKED IF THEY COULD HAVE LET SOMEONE KNOW THAT THE HELIPAD WAS CLOSED AND THEY RESPONDED THAT THEY WOULD NOTAM THE HELIPAD IN THE MORNING.