Pilot of small transport cargo aircraft had near midair collision.

Attributes
ACN	211615
Time
Date	199206
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : mia
State Reference	FL
Altitude	msl bound lower : 5000 msl bound upper : 5000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zma
Operator	common carrier : air taxi
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	cruise other
Route In Use	enroute airway : zma
Flight Plan	IFR
Aircraft 2
Make Model Name	Small Aircraft
Flight Phase	cruise other
Person 1
Affiliation	company : air taxi
Function	flight crew : single pilot
Qualification	pilot : atp
Experience	flight time last 90 days : 235 flight time total : 7000
ASRS Report	211615
Person 2
Affiliation	Other
Function	flight crew : single pilot
Events
Anomaly	conflict : nmac
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 50 vertical : 0
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

In straight and level flight on 130 degree heading at 5000 ft. I was being worked IFR by ZMA. After normal scan, I was looking out the left side of aircraft. When I looked forward, there was an object at my 12 O'clock position. I focused and spotted it. It was an aircraft. This seems low but everything took place in a few seconds. I immediately banked hard right and pulled, then banked left looking over my shoulder at the aircraft. It was a small aircraft white with blue stripes. I called center and told them of a near midair. He advised me there were no aircraft near me. I insisted and he said there was 1 at my 6 O'clock position at 3400 ft. I said wrong he was at 5000 ft. He then said the aircraft is now 5600 ft. He asked if I wanted to file a report. I said maybe. I then thought out the situation and asked for the phone number on the ground. I was in touch with ARTCC controller of ZMA. Report (report number) ZMA (305) 592-9753. He pulled the tapes and found a target with no transponder I missed, he said. He didn't know why they were not investigating an accident it was so close. The controller's screen did not according to him display this aircraft. There is a great problem with filtering out these targets.

Original NASA ASRS Text

Title: PLT OF SMT CARGO ACFT HAD NMAC.

Narrative: IN STRAIGHT AND LEVEL FLT ON 130 DEG HDG AT 5000 FT. I WAS BEING WORKED IFR BY ZMA. AFTER NORMAL SCAN, I WAS LOOKING OUT THE L SIDE OF ACFT. WHEN I LOOKED FORWARD, THERE WAS AN OBJECT AT MY 12 O'CLOCK POS. I FOCUSED AND SPOTTED IT. IT WAS AN ACFT. THIS SEEMS LOW BUT EVERYTHING TOOK PLACE IN A FEW SECONDS. I IMMEDIATELY BANKED HARD R AND PULLED, THEN BANKED L LOOKING OVER MY SHOULDER AT THE ACFT. IT WAS A SMA WHITE WITH BLUE STRIPES. I CALLED CTR AND TOLD THEM OF A NEAR MIDAIR. HE ADVISED ME THERE WERE NO ACFT NEAR ME. I INSISTED AND HE SAID THERE WAS 1 AT MY 6 O'CLOCK POS AT 3400 FT. I SAID WRONG HE WAS AT 5000 FT. HE THEN SAID THE ACFT IS NOW 5600 FT. HE ASKED IF I WANTED TO FILE A RPT. I SAID MAYBE. I THEN THOUGHT OUT THE SITUATION AND ASKED FOR THE PHONE NUMBER ON THE GND. I WAS IN TOUCH WITH ARTCC CTLR OF ZMA. RPT (RPT NUMBER) ZMA (305) 592-9753. HE PULLED THE TAPES AND FOUND A TARGET WITH NO TRANSPONDER I MISSED, HE SAID. HE DIDN'T KNOW WHY THEY WERE NOT INVESTIGATING AN ACCIDENT IT WAS SO CLOSE. THE CTLR'S SCREEN DID NOT ACCORDING TO HIM DISPLAY THIS ACFT. THERE IS A GREAT PROBLEM WITH FILTERING OUT THESE TARGETS.

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.