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Reported conflict with a twin otter by flight crew of MD80. Twin otter had parachute jumpers in an area of the byp arrival. Flight crew received a TCASII RA to climb and saw the traffic.
| Attributes | |
| ACN | 372004 |
| Time | |
| Date | 199706 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : byr |
| State Reference | TX |
| Altitude | msl bound lower : 11500 msl bound upper : 11500 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zfw |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent other |
| Route In Use | arrival other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Twin Otter DHC-6 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | approach : visual |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 372004 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | inflight encounter other other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other controllera |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 1500 vertical : 100 |
Narrative:
We were descending on the byp arrival and ATC called traffic at 1 O'clock. We advised that we did not have the traffic. It was a twin otter with parachute jumpers and he was in a climb. We were in a descent as per the arrival. TCASII gave us a TA and then an RA to climb. We started a climb, and at the last min saw the traffic. He was about 1/4 mi away and 100 ft below. I asked ATC why the traffic was in the area and why he did not turn us away. He said to take it up with my congressman. I believe that VFR traffic has no business in arrival rtes and this problem should be addressed.
Original NASA ASRS Text
Title: RPTED CONFLICT WITH A TWIN OTTER BY FLC OF MD80. TWIN OTTER HAD PARACHUTE JUMPERS IN AN AREA OF THE BYP ARR. FLC RECEIVED A TCASII RA TO CLB AND SAW THE TFC.
Narrative: WE WERE DSNDING ON THE BYP ARR AND ATC CALLED TFC AT 1 O'CLOCK. WE ADVISED THAT WE DID NOT HAVE THE TFC. IT WAS A TWIN OTTER WITH PARACHUTE JUMPERS AND HE WAS IN A CLB. WE WERE IN A DSCNT AS PER THE ARR. TCASII GAVE US A TA AND THEN AN RA TO CLB. WE STARTED A CLB, AND AT THE LAST MIN SAW THE TFC. HE WAS ABOUT 1/4 MI AWAY AND 100 FT BELOW. I ASKED ATC WHY THE TFC WAS IN THE AREA AND WHY HE DID NOT TURN US AWAY. HE SAID TO TAKE IT UP WITH MY CONGRESSMAN. I BELIEVE THAT VFR TFC HAS NO BUSINESS IN ARR RTES AND THIS PROB SHOULD BE ADDRESSED.
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.