Air carrier given aircraft advisory but no contact. Receives TCASII RA, stops climb, descends.

Attributes
ACN	204513
Time
Date	199203
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : oak
State Reference	CA
Altitude	msl bound lower : 14500 msl bound upper : 15000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude
Route In Use	enroute airway : zoa
Flight Plan	IFR
Aircraft 2
Make Model Name	Small Transport
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 10000 flight time type : 2000
ASRS Report	204513
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : atp
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 5500 vertical : 500
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	other

Narrative:

Climbing through approximately 13000 ft oak ARTCC on 132.95 advised us of an small transport (VFR) above us to our 10-11 O'clock position who had us in sight. We did not see him. Soon we received a TCASII RA to stop climb and descend. As we passed through 15000 we followed TCASII down to 14500. When we were clear of the conflict we resumed the climb to FL230. The first officer saw the small transport while we were on our descent. He was above and in a turn to go behind us. He passed within 500 ft and well within 1 mi horizontal.

Original NASA ASRS Text

Title: ACR GIVEN ACFT ADVISORY BUT NO CONTACT. RECEIVES TCASII RA, STOPS CLB, DSNDS.

Narrative: CLBING THROUGH APPROX 13000 FT OAK ARTCC ON 132.95 ADVISED US OF AN SMT (VFR) ABOVE US TO OUR 10-11 O'CLOCK POS WHO HAD US IN SIGHT. WE DID NOT SEE HIM. SOON WE RECEIVED A TCASII RA TO STOP CLB AND DSND. AS WE PASSED THROUGH 15000 WE FOLLOWED TCASII DOWN TO 14500. WHEN WE WERE CLR OF THE CONFLICT WE RESUMED THE CLB TO FL230. THE FO SAW THE SMT WHILE WE WERE ON OUR DSCNT. HE WAS ABOVE AND IN A TURN TO GO BEHIND US. HE PASSED WITHIN 500 FT AND WELL WITHIN 1 MI HORIZ.

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.