Air carrier takes evasive action after receiving TCASII RA.

Attributes
ACN	453540
Time
Date	199910
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : sfo.airport
State Reference	CA
Altitude	msl bound lower : 8500 msl bound upper : 9000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zoa.artcc
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 2 Turbojet Eng
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	climbout : intermediate altitude
Route In Use	departure : on vectors
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi pilot : flight engineer pilot : multi engine
Experience	flight time last 90 days : 240 flight time total : 8000 flight time type : 2000
ASRS Report	453540
Person 2
Function	flight crew : first officer
Qualification	pilot : atp pilot : cfi pilot : multi engine
Experience	flight time last 90 days : 200 flight time total : 10000 flight time type : 2200
ASRS Report	454193
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe other anomaly other
Independent Detector	aircraft equipment : tcas other flight crewa other flight crewb
Resolutory Action	controller : issued new clearance flight crew : took evasive action
Miss Distance	horizontal : 12000 vertical : 400
Supplementary
Problem Areas	Airspace Structure ATC Human Performance
Primary Problem	ATC Human Performance

Narrative:

On climb out from sfd, cleared to 15000 ft. Then given a left turn to 010 degrees and stop climb at 9000 ft. As we leveled out at 9000 ft, we got a TCASII 'traffic' followed by a TCASII RA to 'descend.' the first officer immediately followed the descent guidance and we advised ATC that we were descending with a TCASII RA. At the same time, I visually acquired the traffic crossing left to right and above us at about 2 mi. TCASII indicated his altitude between 9400-9300 ft. We descended to approximately 8500 ft and received a TCASII 'clear of conflict' message and requested a new clearance. ATC cleared us direct lin and to climb to 15000 ft. Our high rate of climb to 9000 ft, prior to leveloff, may have contributed to the TCASII RA. Safety of flight was not compromised and I would not categorize this as a near miss.

Original NASA ASRS Text

Title: ACR TAKES EVASIVE ACTION AFTER RECEIVING TCASII RA.

Narrative: ON CLBOUT FROM SFD, CLRED TO 15000 FT. THEN GIVEN A L TURN TO 010 DEGS AND STOP CLB AT 9000 FT. AS WE LEVELED OUT AT 9000 FT, WE GOT A TCASII 'TFC' FOLLOWED BY A TCASII RA TO 'DSND.' THE FO IMMEDIATELY FOLLOWED THE DSCNT GUIDANCE AND WE ADVISED ATC THAT WE WERE DSNDING WITH A TCASII RA. AT THE SAME TIME, I VISUALLY ACQUIRED THE TFC XING L TO R AND ABOVE US AT ABOUT 2 MI. TCASII INDICATED HIS ALT BTWN 9400-9300 FT. WE DSNDED TO APPROX 8500 FT AND RECEIVED A TCASII 'CLR OF CONFLICT' MESSAGE AND REQUESTED A NEW CLRNC. ATC CLRED US DIRECT LIN AND TO CLB TO 15000 FT. OUR HIGH RATE OF CLB TO 9000 FT, PRIOR TO LEVELOFF, MAY HAVE CONTRIBUTED TO THE TCASII RA. SAFETY OF FLT WAS NOT COMPROMISED AND I WOULD NOT CATEGORIZE THIS AS A NEAR MISS.

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.