Potential conflict lessened as TCASII RA issued to flight crew of departure traffic, an air carrier medium large transport. TA given on small aircraft, VFR, who was to maintain visual separation from air carrier X who was climbing turning traffic.

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Attributes
ACN	244128
Time
Date	199306
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : bur
State Reference	CA
Altitude	msl bound lower : 4600 msl bound upper : 5000
Environment
Flight Conditions	Marginal
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : bur
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
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	cruise other
Route In Use	enroute : direct
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 : 200 flight time total : 5000 flight time type : 1800
ASRS Report	244128
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe non adherence : clearance non adherence : far other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera other other : unspecified
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 1500 vertical : 500
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Departed bur, climbing to 13000 ft and on initial heading of 210 degrees, we were cleared to turn right to a heading of 300 degrees. In turn we were advised that a small aircraft had a visual on us and that it was going to maintain visual separation from us. We were turning into sun, in hazy conditions and consequently could not get a visual on traffic. At approximately 5000 ft TCASII TA turned to RA, commanding descent. We followed RA (advised ATC of same). At approximately 4600 ft RA warning stopped. At about same time we had visual on traffic (small single). It appeared above and in right turn (we were in bank). Once we were in clear, resumed climb. Remainder of flight normal.

Original NASA ASRS Text

Title: POTENTIAL CONFLICT LESSENED AS TCASII RA ISSUED TO FLC OF DEP TFC, AN ACR MLG. TA GIVEN ON SMA, VFR, WHO WAS TO MAINTAIN VISUAL SEPARATION FROM ACR X WHO WAS CLBING TURNING TFC.

Narrative: DEPARTED BUR, CLBING TO 13000 FT AND ON INITIAL HDG OF 210 DEGS, WE WERE CLRED TO TURN R TO A HDG OF 300 DEGS. IN TURN WE WERE ADVISED THAT A SMALL ACFT HAD A VISUAL ON US AND THAT IT WAS GOING TO MAINTAIN VISUAL SEPARATION FROM US. WE WERE TURNING INTO SUN, IN HAZY CONDITIONS AND CONSEQUENTLY COULD NOT GET A VISUAL ON TFC. AT APPROX 5000 FT TCASII TA TURNED TO RA, COMMANDING DSCNT. WE FOLLOWED RA (ADVISED ATC OF SAME). AT APPROX 4600 FT RA WARNING STOPPED. AT ABOUT SAME TIME WE HAD VISUAL ON TFC (SMALL SINGLE). IT APPEARED ABOVE AND IN R TURN (WE WERE IN BANK). ONCE WE WERE IN CLR, RESUMED CLB. REMAINDER OF FLT NORMAL.

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.