near midair collision

Attributes
ACN	201140
Time
Date	199202
Day	Sat
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : srq
State Reference	FL
Altitude	msl bound lower : 500 msl bound upper : 1100
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	tower : srq
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	climbout : intermediate altitude cruise other
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	other
Route In Use	approach : visual
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : commercial pilot : atp
Experience	flight time last 90 days : 150 flight time total : 10000 flight time type : 3500
ASRS Report	201140
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	conflict : nmac non adherence : clearance other anomaly other other spatial deviation
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 300 vertical : 50
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation
Situations
ATC Facility	procedure or policy : unspecified

Narrative:

Just prior to departure from srq, tower cleared a single engine small aircraft Y to circle the airport at 150 ft MSL. About 2 min later, we were cleared for takeoff from runway 32. No advisory of traffic circling northwest of the airport was given to us. At about 500 ft MSL, the TCASII issued a TA and displayed an aircraft at our 2 O'clock position, FL700 ft above our altitude. The first officer (who was flying) immediately had the aircraft insight as a left turn had already been started at .4 DME from the airport to comply with departure instructions. In order to avoid a midair collision, bank angle was increased and a descent was initiated. As these inputs were being initiated, TCASII sounded an RA 'monitor vertical speed' and commanded a climb of 3000-3500 FPM. Compliance with that RA would have resulted in less separation than we had so the RA was ignored. After the collision was avoided, tower advised the small aircraft Y that it was supposed to have turned the other way. Tower also thanked us for a good-rate turn. We were then handed off to tampa departure.

Original NASA ASRS Text

Title: NMAC

Narrative: JUST PRIOR TO DEP FROM SRQ, TWR CLRED A SINGLE ENG SMA Y TO CIRCLE THE ARPT AT 150 FT MSL. ABOUT 2 MIN LATER, WE WERE CLRED FOR TKOF FROM RWY 32. NO ADVISORY OF TFC CIRCLING NW OF THE ARPT WAS GIVEN TO US. AT ABOUT 500 FT MSL, THE TCASII ISSUED A TA AND DISPLAYED AN ACFT AT OUR 2 O'CLOCK POS, FL700 FT ABOVE OUR ALT. THE FO (WHO WAS FLYING) IMMEDIATELY HAD THE ACFT INSIGHT AS A L TURN HAD ALREADY BEEN STARTED AT .4 DME FROM THE ARPT TO COMPLY WITH DEP INSTRUCTIONS. IN ORDER TO AVOID A MIDAIR COLLISION, BANK ANGLE WAS INCREASED AND A DSCNT WAS INITIATED. AS THESE INPUTS WERE BEING INITIATED, TCASII SOUNDED AN RA 'MONITOR VERT SPD' AND COMMANDED A CLB OF 3000-3500 FPM. COMPLIANCE WITH THAT RA WOULD HAVE RESULTED IN LESS SEPARATION THAN WE HAD SO THE RA WAS IGNORED. AFTER THE COLLISION WAS AVOIDED, TWR ADVISED THE SMA Y THAT IT WAS SUPPOSED TO HAVE TURNED THE OTHER WAY. TWR ALSO THANKED US FOR A GOOD-RATE TURN. WE WERE THEN HANDED OFF TO TAMPA DEP.

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.

Near midair collision