B757 departure from sna at 1000 ft experienced TCASII RA with unrpted traffic above at approximately...

Attributes
ACN	646945
Time
Date	200502
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : sna.airport
State Reference	CA
Altitude	agl single value : 1000
Environment
Flight Conditions	VMC
Aircraft 1
Controlling Facilities	tracon : sct.tracon
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	climbout : takeoff climbout : initial ground : maintenance
Route In Use	departure : noise abatement
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : sct.tracon
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise : level
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 240 flight time total : 18000 flight time type : 2000
ASRS Report	646945
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	conflict : airborne critical
Independent Detector	aircraft equipment : tcas other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	vertical : 200
Supplementary
Problem Areas	Navigational Facility ATC Human Performance FAA
Primary Problem	Ambiguous

Narrative:

We departed from sna following our prescribed noise abatement profile. At approximately 1000 ft AGL; we received a TA which quickly turned into an RA with aural commands to 'monitor vertical speed' followed by 'descend; descend.' TCASII showed the traffic; I believe; at the 2 O'clock position at 200 ft above us (at its closest). We had a cloud layer above us and never saw the traffic. We had not even been turned over to socal departure yet. The first officer reported the RA and the 200 ft to the tower. Their response was that they did not show anything on their radar and to give us a frequency handoff to socal. Checking in with socal; the first officer relayed the same information. The socal controller did have the traffic on his scope. At that point; it was not a factor and behind us. We were right on profile and had scanned for traffic; but pretty hard to see through clouds. This target was not on scope when we started the takeoff roll. Lots of HF involved. First officer called sna tower on ground in den and they are supposedly following through.

Original NASA ASRS Text

Title: B757 DEP FROM SNA AT 1000 FT EXPERIENCED TCASII RA WITH UNRPTED TFC ABOVE AT APPROX 1200 FT.

Narrative: WE DEPARTED FROM SNA FOLLOWING OUR PRESCRIBED NOISE ABATEMENT PROFILE. AT APPROX 1000 FT AGL; WE RECEIVED A TA WHICH QUICKLY TURNED INTO AN RA WITH AURAL COMMANDS TO 'MONITOR VERT SPD' FOLLOWED BY 'DSND; DSND.' TCASII SHOWED THE TFC; I BELIEVE; AT THE 2 O'CLOCK POS AT 200 FT ABOVE US (AT ITS CLOSEST). WE HAD A CLOUD LAYER ABOVE US AND NEVER SAW THE TFC. WE HAD NOT EVEN BEEN TURNED OVER TO SOCAL DEP YET. THE FO RPTED THE RA AND THE 200 FT TO THE TWR. THEIR RESPONSE WAS THAT THEY DID NOT SHOW ANYTHING ON THEIR RADAR AND TO GIVE US A FREQ HDOF TO SOCAL. CHKING IN WITH SOCAL; THE FO RELAYED THE SAME INFO. THE SOCAL CTLR DID HAVE THE TFC ON HIS SCOPE. AT THAT POINT; IT WAS NOT A FACTOR AND BEHIND US. WE WERE RIGHT ON PROFILE AND HAD SCANNED FOR TFC; BUT PRETTY HARD TO SEE THROUGH CLOUDS. THIS TARGET WAS NOT ON SCOPE WHEN WE STARTED THE TKOF ROLL. LOTS OF HF INVOLVED. FO CALLED SNA TWR ON GND IN DEN AND THEY ARE SUPPOSEDLY FOLLOWING THROUGH.

Data retrieved from NASA's ASRS site as of January 2009 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.

B757 departure from sna at 1000 ft experienced TCASII RA with unrpted traffic above at approximately 1200 ft.