Narrative:

On the loupe 9 departure from sjc, began turn at 1.8 DME. Remained within 4 DME at all times (30 degree bank turn). As we entered our climbing turn to a 120 degree heading the departure/approach controller called traffic at 9 O'clock position, we were around 3700 ft MSL. As we were in our turn now heading about 090 degrees, the controller called another aircraft to our attention at around 2 O'clock. We were looking, but did not see traffic. At approximately 4600 ft MSL, as we were about to level off at 5000 ft MSL, we got a TA on TCASII. This was just as we were completing our turn to 120 degrees. At 4800 ft MSL we got an RA telling us to descend, we had not yet leveled at 5000 ft MSL. I stopped the climb and began a descent. The TCASII showed traffic now at +200 ft above and in front of us. At this point the controller told us this aircraft had us in visual contact and to continue our climb to 12000 ft, then he came back and said to expedite our climb to 12000 ft. At that moment the captain grabbed the yoke and began an immediate climbing turn to the right. It looked as though our traffic, the twin cessna, just saw us also. Aircraft #2 quickly veered to the right and descended immediately. We did not continue climb because RA was telling us to descend. We began climb after traffic was in sight. Airspace for departure should be class B. Departure is too busy to be looking for VFR traffic at our altitude.

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Original NASA ASRS Text

Title: MD80 CREW HAD NMAC IN SJC CLASS C WHILE ON THE LOUPE 9 SID.

Narrative: ON THE LOUPE 9 DEP FROM SJC, BEGAN TURN AT 1.8 DME. REMAINED WITHIN 4 DME AT ALL TIMES (30 DEG BANK TURN). AS WE ENTERED OUR CLBING TURN TO A 120 DEG HDG THE DEP/APCH CTLR CALLED TFC AT 9 O'CLOCK POS, WE WERE AROUND 3700 FT MSL. AS WE WERE IN OUR TURN NOW HDG ABOUT 090 DEGS, THE CTLR CALLED ANOTHER ACFT TO OUR ATTN AT AROUND 2 O'CLOCK. WE WERE LOOKING, BUT DID NOT SEE TFC. AT APPROX 4600 FT MSL, AS WE WERE ABOUT TO LEVEL OFF AT 5000 FT MSL, WE GOT A TA ON TCASII. THIS WAS JUST AS WE WERE COMPLETING OUR TURN TO 120 DEGS. AT 4800 FT MSL WE GOT AN RA TELLING US TO DSND, WE HAD NOT YET LEVELED AT 5000 FT MSL. I STOPPED THE CLB AND BEGAN A DSCNT. THE TCASII SHOWED TFC NOW AT +200 FT ABOVE AND IN FRONT OF US. AT THIS POINT THE CTLR TOLD US THIS ACFT HAD US IN VISUAL CONTACT AND TO CONTINUE OUR CLB TO 12000 FT, THEN HE CAME BACK AND SAID TO EXPEDITE OUR CLB TO 12000 FT. AT THAT MOMENT THE CAPT GRABBED THE YOKE AND BEGAN AN IMMEDIATE CLBING TURN TO THE R. IT LOOKED AS THOUGH OUR TFC, THE TWIN CESSNA, JUST SAW US ALSO. ACFT #2 QUICKLY VEERED TO THE R AND DSNDED IMMEDIATELY. WE DID NOT CONTINUE CLB BECAUSE RA WAS TELLING US TO DSND. WE BEGAN CLB AFTER TFC WAS IN SIGHT. AIRSPACE FOR DEP SHOULD BE CLASS B. DEP IS TOO BUSY TO BE LOOKING FOR VFR TFC AT OUR ALT.

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.