Narrative:

While climbing out of clt on BOBZY4 SID; we noticed a TCAS TA aircraft descending on our current flight path. We had just flown into clt on a STAR that resulted in a TCAS RA; and could detect that at our current rate of climb; that this would become a TCAS RA event if no action on our part was taken. The first officer (first officer) was flying and elected to decrease our rate of climb by decreasing the angle of attack. This resulted in an 'excessive speed' below 10;000 feet. The resulting decrease in pitch increased our airspeed to 280 kts before we were able to reduce the power enough to slow back down to the maximum of 250 kts below 10;000 feet. We did not get a TCAS RA due to the first officer's actions; and I would have done the same thing had I been flying the plane. In debriefing this situation; it seemed apparent to both of us that this must be a daily occurrence within the confines of the clt sids and stars. There is only a 1000 foot separation between the altitudes of the STAR and SID that we flew; with very narrow horizontal separation. With an aircraft climbing out at a normal rate of climb; and another aircraft descending on the STAR; it would seem that this would be a regularly occurring situation within the clt approach/departure airspace.

Google
 

Original NASA ASRS Text

Title: Air Carrier flight crew reported exceeding 250 knots below 10;000 feet while departing CLT to avoid inbound traffic.

Narrative: While climbing out of CLT on BOBZY4 SID; we noticed a TCAS TA aircraft descending on our current flight path. We had just flown into CLT on a STAR that resulted in a TCAS RA; and could detect that at our current rate of climb; that this would become a TCAS RA event if no action on our part was taken. The FO (First Officer) was flying and elected to decrease our rate of climb by decreasing the angle of attack. This resulted in an 'excessive speed' below 10;000 feet. The resulting decrease in pitch increased our airspeed to 280 kts before we were able to reduce the power enough to slow back down to the maximum of 250 kts below 10;000 feet. We did not get a TCAS RA due to the FO's actions; and I would have done the same thing had I been flying the plane. In debriefing this situation; it seemed apparent to both of us that this must be a daily occurrence within the confines of the CLT SIDs and STARs. There is only a 1000 foot separation between the altitudes of the STAR and SID that we flew; with very narrow horizontal separation. With an aircraft climbing out at a normal rate of climb; and another aircraft descending on the STAR; it would seem that this would be a regularly occurring situation within the CLT approach/departure airspace.

Data retrieved from NASA's ASRS site 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.