Near midair collision.

Attributes
ACN	183114
Time
Date	199107
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : clt
State Reference	NC
Altitude	msl bound lower : 3000 msl bound upper : 4000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : clt tower : alb
Operator	common carrier : air carrier
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Flight Phase	descent : approach descent other
Route In Use	approach : visual
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other
Flight Plan	None
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 3800 flight time type : 280
ASRS Report	183114
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 250 flight time total : 5500 flight time type : 3000
ASRS Report	183111
Events
Anomaly	conflict : nmac non adherence : far other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 150 vertical : 50
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Was 'cleared for the visual 36L, follow medium large transport on 2 mi final.' descending through 4000 ft at approximately 1500 FPM; at approximately 3400-3600 ft MSL I was scanning area while captain was keeping visual on the medium large transport when over the captain's shoulder in rear cockpit window, I saw an aircraft on a converging path at our altitude. The small aircraft was approximately 100 ft to 150 ft horizontally heading right at us. I immediately took evasive action down and to the right, recovered and completed the visual approach. Tower was asked about the target and they had not seen him until after our action. Apparently the aircraft was in the TCA with no transponder or communications and flying right across a busy approach path. Supplemental information from acn 183111. The first officer sighted a single engine small aircraft converging from our left. We were heading northeast, the small aircraft was heading southeast. And that the aircraft wasn't talking to them. They didn't know he was there. TCAS would've helped considerably, however we weren't equipped.

Original NASA ASRS Text

Title: NMAC.

Narrative: WAS 'CLRED FOR THE VISUAL 36L, FOLLOW MLG ON 2 MI FINAL.' DSNDING THROUGH 4000 FT AT APPROX 1500 FPM; AT APPROX 3400-3600 FT MSL I WAS SCANNING AREA WHILE CAPT WAS KEEPING VISUAL ON THE MLG WHEN OVER THE CAPT'S SHOULDER IN REAR COCKPIT WINDOW, I SAW AN ACFT ON A CONVERGING PATH AT OUR ALT. THE SMA WAS APPROX 100 FT TO 150 FT HORIZLY HDG R AT US. I IMMEDIATELY TOOK EVASIVE ACTION DOWN AND TO THE R, RECOVERED AND COMPLETED THE VISUAL APCH. TWR WAS ASKED ABOUT THE TARGET AND THEY HAD NOT SEEN HIM UNTIL AFTER OUR ACTION. APPARENTLY THE ACFT WAS IN THE TCA WITH NO XPONDER OR COMS AND FLYING R ACROSS A BUSY APCH PATH. SUPPLEMENTAL INFO FROM ACN 183111. THE FO SIGHTED A SINGLE ENG SMA CONVERGING FROM OUR L. WE WERE HDG NE, THE SMA WAS HDG SE. AND THAT THE ACFT WASN'T TALKING TO THEM. THEY DIDN'T KNOW HE WAS THERE. TCAS WOULD'VE HELPED CONSIDERABLY, HOWEVER WE WEREN'T EQUIPPED.

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.