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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Super 80 gets a late TA from approach controller on traffic at 5500 ft at aus. Medium large transport was out of 6000 ft in descent. TCASII climb resolution failed when the VFR aircraft climbed towards medium large transport. S80 dove to avoid near midair collision, following TCASII new commands.
| Attributes | |
| ACN | 368038 |
| Time | |
| Date | 199705 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : aus |
| State Reference | TX |
| Altitude | msl bound lower : 5000 msl bound upper : 6000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : aus |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Super 80 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | other : unknown |
| Flight Phase | climbout : intermediate altitude cruise other |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| ASRS Report | 368038 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 368039 |
| Events | |
| Anomaly | altitude deviation : undershoot conflict : nmac non adherence : far other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other controllera |
| Resolutory Action | controller : issued new clearance flight crew : took evasive action other |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation other |
Narrative:
We were cleared to 5000 ft by austin approach. As we descended through 6000 ft, approach called and told us maintain 6000 ft and called traffic at 5500 ft. We advised ATC that we had already descended through 6000 ft and would climb back to 6000 ft. As we began pitch reversal, TCASII called traffic and advised us to monitor vertical speed. We complied and spotted traffic at about 2 O'clock. The traffic then began a climbing turn towards us. Traffic passed over and behind us. A call to supervisor at austin approach control confirmed the events. ATC was not working the intruder aircraft at the time. Supplemental information from acn 368039: TCASII then commanded a descend RA to which we immediately complied.
Original NASA ASRS Text
Title: SUPER 80 GETS A LATE TA FROM APCH CTLR ON TFC AT 5500 FT AT AUS. MLG WAS OUT OF 6000 FT IN DSCNT. TCASII CLB RESOLUTION FAILED WHEN THE VFR ACFT CLBED TOWARDS MLG. S80 DOVE TO AVOID NMAC, FOLLOWING TCASII NEW COMMANDS.
Narrative: WE WERE CLRED TO 5000 FT BY AUSTIN APCH. AS WE DSNDED THROUGH 6000 FT, APCH CALLED AND TOLD US MAINTAIN 6000 FT AND CALLED TFC AT 5500 FT. WE ADVISED ATC THAT WE HAD ALREADY DSNDED THROUGH 6000 FT AND WOULD CLB BACK TO 6000 FT. AS WE BEGAN PITCH REVERSAL, TCASII CALLED TFC AND ADVISED US TO MONITOR VERT SPD. WE COMPLIED AND SPOTTED TFC AT ABOUT 2 O'CLOCK. THE TFC THEN BEGAN A CLBING TURN TOWARDS US. TFC PASSED OVER AND BEHIND US. A CALL TO SUPVR AT AUSTIN APCH CTL CONFIRMED THE EVENTS. ATC WAS NOT WORKING THE INTRUDER ACFT AT THE TIME. SUPPLEMENTAL INFO FROM ACN 368039: TCASII THEN COMMANDED A DSND RA TO WHICH WE IMMEDIATELY COMPLIED.
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.