Air carrier X had near midair collision with VFR Y at same altitude. Evasive action taken. See and a...

Attributes
ACN	211969
Time
Date	199205
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : crl
State Reference	MI
Altitude	msl bound lower : 16000 msl bound upper : 16000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zob tracon : ont
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	VFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller radar : 4
ASRS Report	211969
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : nmac non adherence : far
Independent Detector	other controllera other flight crewa
Resolutory Action	controller : issued new clearance flight crew : took evasive action other
Consequence	Other
Miss Distance	horizontal : 0 vertical : 200
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

Air carrier X level at FL160 cle..crl..jxn..A20 descending. I saw a VFR code at FL160 heading s-swbound. I took handoff on air carrier X. Before air carrier X called, I determined the 2 targets would merge. I called across the aisle to the tol sector controller and said he could either climb or descend the air carrier X. He had already changed his frequency. The air carrier checked on my frequency and I called the traffic. He reported him in sight. I wasn't comfortable with the proximity of the aircraft Y, so I climbed the air carrier X to FL170. The air carrier X said the altitude on the VFR Y was FL160 and estimated the miss at a couple hundred ft and no mileage. The air carrier X took evasive action.

Original NASA ASRS Text

Title: ACR X HAD NMAC WITH VFR Y AT SAME ALT. EVASIVE ACTION TAKEN. SEE AND AVOID CONCEPT.

Narrative: ACR X LEVEL AT FL160 CLE..CRL..JXN..A20 DSNDING. I SAW A VFR CODE AT FL160 HDG S-SWBOUND. I TOOK HDOF ON ACR X. BEFORE ACR X CALLED, I DETERMINED THE 2 TARGETS WOULD MERGE. I CALLED ACROSS THE AISLE TO THE TOL SECTOR CTLR AND SAID HE COULD EITHER CLB OR DSND THE ACR X. HE HAD ALREADY CHANGED HIS FREQ. THE ACR CHKED ON MY FREQ AND I CALLED THE TFC. HE RPTED HIM IN SIGHT. I WASN'T COMFORTABLE WITH THE PROX OF THE ACFT Y, SO I CLBED THE ACR X TO FL170. THE ACR X SAID THE ALT ON THE VFR Y WAS FL160 AND ESTIMATED THE MISS AT A COUPLE HUNDRED FT AND NO MILEAGE. THE ACR X TOOK EVASIVE ACTION.

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.

Air carrier X had near midair collision with VFR Y at same altitude. Evasive action taken. See and avoid concept.