LGT ON INITIAL CLB RECEIVES TCASII ALERT AND TFC CALL FROM ATC WITH TFC SAME ALT. INCREASES CLB RATE BUT DECREASES AIRSPD BELOW BUG SPD.

Narrative

ON THE DEP IN SNA; THE SID AND COMPANY NOISE ABATEMENT PROC; FOR SNA; DICTATED A CLB WITH MAX TKOF PWR TO 800 FT; THEN REDUCE TO CLB 2 PWR (20% BELOW NORMAL CLB PWR). THEN AT 1 MI; TURN L TO A HDG OF 175. THESE 2 EVENTS HAPPENED AT APPROX THE SAME TIME. DURING THIS DEP WITH PWR BEING REDUCED; IN A L TURN; AND LOWERING PITCH TO REDUCE CLB; TCASII SUDDENLY GAVE AN ORAL ALERT. LOOKING AT THE TCASII; I SAW THAT WE WERE APCHING THE ALT OF THE TFC. SNA DEP CTL THEN ADVISED US OF THE TFC; NOW BEING AT OUR ALT. I DECIDED TO INCREASE CLB RATE TO 500 FT ABOVE THE TFC; WITH A SLIGHT INCREASE IN PITCH. THIS ACTION KEPT ME AWAY FROM A TFC CONFLICT; ON THE SID; AND QUIET FOR A NOISE SENSITIVE ARPT. THE TFC WAS NEVER SEEN AND THERE WAS NO CONFLICT. BECAUSE OF THIS; AIRSPD DECREASED BELOW BUG SPD. AS I WAS RETURNING THE AIRSPD TO NORMAL; THE FO CALLED OUT THE AIRSPD DEV. THE REMAINDER OF THE FLT WAS NORMAL. SUPPLEMENTAL INFO FROM ACN 210283: THE LGT IS A QUIET ACFT. THE NOISE ABATEMENT PROC SHOULD BE DROPPED FOR THIS ACFT.