Narrative:

Shortly after takeoff at ont we got TCASII TA at less than 1 mi, 12 O'clock (yellow symbol, no altitude). Shortly thereafter, we got an RA. The symbol was red and showed - 01 under our nose (we never saw the target visually). The RA was to climb at maximum rate. We followed TCASII. I asked socal departure if they had seen the target. They said they had nothing on their radar.

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Original NASA ASRS Text

Title: B737 CREW GOT A TCASII TA AND THEN AN RA.

Narrative: SHORTLY AFTER TKOF AT ONT WE GOT TCASII TA AT LESS THAN 1 MI, 12 O'CLOCK (YELLOW SYMBOL, NO ALT). SHORTLY THEREAFTER, WE GOT AN RA. THE SYMBOL WAS RED AND SHOWED - 01 UNDER OUR NOSE (WE NEVER SAW THE TARGET VISUALLY). THE RA WAS TO CLB AT MAX RATE. WE FOLLOWED TCASII. I ASKED SOCAL DEP IF THEY HAD SEEN THE TARGET. THEY SAID THEY HAD NOTHING ON THEIR RADAR.

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.