Near midair collision.

Attributes
ACN	303044
Time
Date	199504
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : aus
State Reference	TX
Altitude	msl bound lower : 16000 msl bound upper : 17000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Flight Phase	cruise other descent other
Route In Use	enroute airway : zhu
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	other : unknown
Flight Phase	cruise other
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 230 flight time total : 28000 flight time type : 7000
ASRS Report	303044
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	altitude deviation : excursion from assigned altitude altitude deviation : overshoot conflict : nmac non adherence : clearance
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 0 vertical : 200
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We were cleared from 18000 ft to 17000 ft and given VFR traffic at 12 O'clock and 7 mi at 16500 ft. When we leveled at 17000 ft we had a TCASII RA, telling us to descend. We saw a red target at 12 O'clock at about 3 mi indicating our same altitude (17000 ft). We followed the TCASII instructions and descended to 16000 ft and notified ATC. Neither the first officer or I saw the traffic, but TCASII said we passed within 200 ft.

Original NASA ASRS Text

Title: NMAC.

Narrative: WE WERE CLRED FROM 18000 FT TO 17000 FT AND GIVEN VFR TFC AT 12 O'CLOCK AND 7 MI AT 16500 FT. WHEN WE LEVELED AT 17000 FT WE HAD A TCASII RA, TELLING US TO DSND. WE SAW A RED TARGET AT 12 O'CLOCK AT ABOUT 3 MI INDICATING OUR SAME ALT (17000 FT). WE FOLLOWED THE TCASII INSTRUCTIONS AND DSNDED TO 16000 FT AND NOTIFIED ATC. NEITHER THE FO OR I SAW THE TFC, BUT TCASII SAID WE PASSED WITHIN 200 FT.

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.