Narrative:

On mar/xa/99 I was the pilot of cessna twin, at XX30 hours, inbound to deer valley from tucson. I was handed over from phx approach to deer valley tower, with radar service terminated at 4000 ft MSL, contact deer valley tower prior to entering the air traffic area. I reduced power, started my descent down to traffic pattern altitude and contacted the deer valley tower on 118.4 just north of squaw peak. I was instructed by the tower to enter left base for runway 25L and call 3 mi out on base. Another twin cessna called east of the airport and was instructed to make a straight-in entry to runway 25L. Then a helicopter called stating he was south of the airport and was instructed to make an entry to the helipad. Normal entry for helicopters is from south of the airport (90 degrees to the runways) straight-in to the helipads just south of the southern most taxiway. I spotted the helicopter somewhat east of where he had reported to the tower and below me. As I approached bell road (about 3 mi southeast of the airport) the other twin cessna reported on a 4 mi straight-in to runway 25L, he was cleared to land #1. I leveled out at 2500 ft, lowered approach flaps -- to sow aircraft -- spotted the twin cessna on final approach, and began a turn to the east (downwind leg) so as to space myself behind the aircraft and to have space to land behind him. I lost sight of the helicopter below and to my left. As I began my turn to the downwind the helicopter pilot called the tower and wanted to know the number of the twin that flew over him at '2000 ft.' I checked my altimeter and at that time was still level at 2500 ft. Deer valley ATIS information gave the altimeter setting as 29.86, and during the approach the tower announced that information was current, with the same altimeter setting. It was difficult to communicate with the tower as the helicopter kept blocking the tower frequency wanting to know what the aircraft number was, and that he wanted to meet the pilot on the ramp. I was cleared to land behind the twin cessna. After landing I taxied to the parking area and unloaded the aircraft. I was carrying cargo which is time critical. I then went to the telephone and called the tower. At that time I was informed that the helicopter pilot had filled a near miss report. My last view of the helicopter, he appeared to be slightly to my left and below me, and he should have been headed towards mid field. He was perhaps 1/4 mi to my left, but as I turned toward the east to extend behind the first twin cessna I lost sight of the helicopter under nose of my aircraft.

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Original NASA ASRS Text

Title: A TWIN CESSNA HAS A POTENTIAL CONFLICT WITH A HELI NEAR DVT ARPT, AZ.

Narrative: ON MAR/XA/99 I WAS THE PLT OF CESSNA TWIN, AT XX30 HRS, INBOUND TO DEER VALLEY FROM TUCSON. I WAS HANDED OVER FROM PHX APCH TO DEER VALLEY TWR, WITH RADAR SVC TERMINATED AT 4000 FT MSL, CONTACT DEER VALLEY TWR PRIOR TO ENTERING THE ATA. I REDUCED PWR, STARTED MY DSCNT DOWN TO TFC PATTERN ALT AND CONTACTED THE DEER VALLEY TWR ON 118.4 JUST N OF SQUAW PEAK. I WAS INSTRUCTED BY THE TWR TO ENTER L BASE FOR RWY 25L AND CALL 3 MI OUT ON BASE. ANOTHER TWIN CESSNA CALLED E OF THE ARPT AND WAS INSTRUCTED TO MAKE A STRAIGHT-IN ENTRY TO RWY 25L. THEN A HELI CALLED STATING HE WAS S OF THE ARPT AND WAS INSTRUCTED TO MAKE AN ENTRY TO THE HELIPAD. NORMAL ENTRY FOR HELIS IS FROM S OF THE ARPT (90 DEGS TO THE RWYS) STRAIGHT-IN TO THE HELIPADS JUST S OF THE SOUTHERN MOST TXWY. I SPOTTED THE HELI SOMEWHAT E OF WHERE HE HAD RPTED TO THE TWR AND BELOW ME. AS I APCHED BELL ROAD (ABOUT 3 MI SE OF THE ARPT) THE OTHER TWIN CESSNA RPTED ON A 4 MI STRAIGHT-IN TO RWY 25L, HE WAS CLRED TO LAND #1. I LEVELED OUT AT 2500 FT, LOWERED APCH FLAPS -- TO SOW ACFT -- SPOTTED THE TWIN CESSNA ON FINAL APCH, AND BEGAN A TURN TO THE E (DOWNWIND LEG) SO AS TO SPACE MYSELF BEHIND THE ACFT AND TO HAVE SPACE TO LAND BEHIND HIM. I LOST SIGHT OF THE HELI BELOW AND TO MY L. AS I BEGAN MY TURN TO THE DOWNWIND THE HELI PLT CALLED THE TWR AND WANTED TO KNOW THE NUMBER OF THE TWIN THAT FLEW OVER HIM AT '2000 FT.' I CHKED MY ALTIMETER AND AT THAT TIME WAS STILL LEVEL AT 2500 FT. DEER VALLEY ATIS INFO GAVE THE ALTIMETER SETTING AS 29.86, AND DURING THE APCH THE TWR ANNOUNCED THAT INFO WAS CURRENT, WITH THE SAME ALTIMETER SETTING. IT WAS DIFFICULT TO COMMUNICATE WITH THE TWR AS THE HELI KEPT BLOCKING THE TWR FREQ WANTING TO KNOW WHAT THE ACFT NUMBER WAS, AND THAT HE WANTED TO MEET THE PLT ON THE RAMP. I WAS CLRED TO LAND BEHIND THE TWIN CESSNA. AFTER LNDG I TAXIED TO THE PARKING AREA AND UNLOADED THE ACFT. I WAS CARRYING CARGO WHICH IS TIME CRITICAL. I THEN WENT TO THE TELEPHONE AND CALLED THE TWR. AT THAT TIME I WAS INFORMED THAT THE HELI PLT HAD FILLED A NEAR MISS RPT. MY LAST VIEW OF THE HELI, HE APPEARED TO BE SLIGHTLY TO MY L AND BELOW ME, AND HE SHOULD HAVE BEEN HEADED TOWARDS MID FIELD. HE WAS PERHAPS 1/4 MI TO MY L, BUT AS I TURNED TOWARD THE E TO EXTEND BEHIND THE FIRST TWIN CESSNA I LOST SIGHT OF THE HELI UNDER NOSE OF MY ACFT.

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.