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ZFW controller described a TCAS RA event when an air carrier arrival via the BYP5 STAR responded to a skydiver aircraft near karla intersection; suggesting the karla crossing altitude be increased to 16;000.
| Attributes | |
| ACN | 911723 |
| Time | |
| Date | 201010 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZFW.ARTCC |
| State Reference | TX |
| Aircraft 1 | |
| Make Model Name | MD-82 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Other Part 105 |
| Flight Phase | Climb |
| Flight Plan | VFR |
| Person 1 | |
| Qualification | Air Traffic Control Fully Certified |
| Events | |
| Anomaly | ATC Issue All Types Conflict Airborne Conflict |
Narrative:
I had skydiver aircraft in a jump area southwest of byp climbing to 14;500 VFR. I had a MD82 on the BYP5 star crossing karla intersection at or above 15;000 and then crossing lemyn at 11;000. I switched the MD82 to approach and the pilot took the frequency change. The pilot then came back on frequency to say that they had traffic ahead and they were responding to a TCAS RA. I then gave him the traffic ahead and told him the aircraft was VFR and would be at or below 14;500. The skydiver pilot then said that he had the MD82 in sight. I told the MD82 that the traffic had him in sight. Once past the skydiver aircraft; the MD82 said they were descending and switching to approach frequency. It may be necessary to make the crossing at karla 16;000 instead of 15;000 to keep the IFR traffic above the VFR traffic by more than the required separation.
Original NASA ASRS Text
Title: ZFW Controller described a TCAS RA event when an Air Carrier arrival via the BYP5 STAR responded to a skydiver aircraft near KARLA Intersection; suggesting the KARLA crossing altitude be increased to 16;000.
Narrative: I had skydiver aircraft in a jump area southwest of BYP climbing to 14;500 VFR. I had a MD82 on the BYP5 Star crossing KARLA Intersection at or above 15;000 and then crossing LEMYN at 11;000. I switched the MD82 to Approach and the pilot took the frequency change. The pilot then came back on frequency to say that they had traffic ahead and they were responding to a TCAS RA. I then gave him the traffic ahead and told him the aircraft was VFR and would be at or below 14;500. The skydiver pilot then said that he had the MD82 in sight. I told the MD82 that the traffic had him in sight. Once past the skydiver aircraft; the MD82 said they were descending and switching to Approach frequency. It may be necessary to make the crossing at KARLA 16;000 instead of 15;000 to keep the IFR traffic above the VFR traffic by more than the required separation.
Data retrieved from NASA's ASRS site as of April 2012 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.