An arriving B737 has a conflict with an opposite direction cirrus SR22 climbing to same altitude of 4000 ft, 5 NM northwest of srq, fl.

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Attributes
ACN	578141
Time
Date	200303
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : srq.airport
State Reference	FL
Altitude	msl single value : 4000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : tpa.tracon
Operator	common carrier : air carrier
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	descent : approach
Route In Use	arrival : on vectors
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : tpa.tracon
Operator	general aviation : personal
Make Model Name	Experimental
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 4900 flight time type : 8000
ASRS Report	578141
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	altitude deviation : overshoot non adherence : published procedure non adherence : clearance non adherence other
Independent Detector	aircraft equipment : tcas other controllera other flight crewa other flight crewb
Resolutory Action	controller : issued advisory flight crew : took precautionary avoidance action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 9000 vertical : 250
Supplementary
Problem Areas	Airspace Structure Environmental Factor Flight Crew Human Performance ATC Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Inter Facility Coordination Failure Operational Error Pilot Deviation

Narrative:

On downwind, we were level at 4000 ft MSL for runway 32. Noticed aircraft 12 O'clock position, 2 1/2 mi, 600 ft below us. We were on 140 degree heading when aircraft got 300 ft below. We turned to 180 degree heading. Aircraft in sight, as we turned, at our 11 O'clock position. Had visual on aircraft at the 11 O'clock position and same altitude. Continued flight uneventfully, and landed at srq. Supplemental information from acn 548020: I was misassigned a heading and altitude of 3000 ft. I had set my altimeter per the ATIS at 29.40. I was level at 3000 ft when controller asked my altitude and told me he had me at 4000 ft. I asked for barometer setting, and was told 30.40. A 737 had evaded due to TCASII. I descended and called tampa approach when I landed. I should have noticed the altimeter and field elevation differed by 1000 ft, but I am used to flying at higher elevations.

Original NASA ASRS Text

Title: AN ARRIVING B737 HAS A CONFLICT WITH AN OPPOSITE DIRECTION CIRRUS SR22 CLBING TO SAME ALT OF 4000 FT, 5 NM NW OF SRQ, FL.

Narrative: ON DOWNWIND, WE WERE LEVEL AT 4000 FT MSL FOR RWY 32. NOTICED ACFT 12 O'CLOCK POS, 2 1/2 MI, 600 FT BELOW US. WE WERE ON 140 DEG HDG WHEN ACFT GOT 300 FT BELOW. WE TURNED TO 180 DEG HDG. ACFT IN SIGHT, AS WE TURNED, AT OUR 11 O'CLOCK POS. HAD VISUAL ON ACFT AT THE 11 O'CLOCK POS AND SAME ALT. CONTINUED FLT UNEVENTFULLY, AND LANDED AT SRQ. SUPPLEMENTAL INFO FROM ACN 548020: I WAS MISASSIGNED A HDG AND ALT OF 3000 FT. I HAD SET MY ALTIMETER PER THE ATIS AT 29.40. I WAS LEVEL AT 3000 FT WHEN CTLR ASKED MY ALT AND TOLD ME HE HAD ME AT 4000 FT. I ASKED FOR BAROMETER SETTING, AND WAS TOLD 30.40. A 737 HAD EVADED DUE TO TCASII. I DSNDED AND CALLED TAMPA APCH WHEN I LANDED. I SHOULD HAVE NOTICED THE ALTIMETER AND FIELD ELEVATION DIFFERED BY 1000 FT, BUT I AM USED TO FLYING AT HIGHER ELEVATIONS.

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.