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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Controller descends an air carrier for traffic. Air carrier sees traffic above on TCASII and questions controller before descending.
| Attributes | |
| ACN | 240577 |
| Time | |
| Date | 199305 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : scy |
| State Reference | TX |
| Altitude | msl bound lower : 7000 msl bound upper : 8000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | cruise other |
| Route In Use | enroute airway : zfw |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller non radar : 8 controller radar : 8 |
| ASRS Report | 240577 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | non adherence : clearance other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | none taken : unable |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Air carrier X level at 7000 ft. I was extremely busy and running out of altitudes fast. There was an aircraft at 8000 ft above him that I needed to get to 7000 ft. I instructed air carrier X to 'descend and maintain 6000 ft, report leaving 7000 ft.' he acknowledged 'roger, descending to 6000 ft.' I instructed air carrier X again to report leaving 7000 ft so I could assign it to another aircraft. He states 'we have someone on TCASII right above us at 8000 ft.' I acknowledged him and told him that when he leaves 7000 ft and reports leaving it, I can assign it to another aircraft. This is legal separation in accordance with 7110.65G paragraph 6-50. We don't need pilots with TCASII, second guessing our actions. He did not receive an RA. This is another example of TCASII hampering our job. TCASII will cause a major mishap or accident somewhere. It's only a matter of time.
Original NASA ASRS Text
Title: CTLR DSNDS AN ACR FOR TFC. ACR SEES TFC ABOVE ON TCASII AND QUESTIONS CTLR BEFORE DSNDING.
Narrative: ACR X LEVEL AT 7000 FT. I WAS EXTREMELY BUSY AND RUNNING OUT OF ALTS FAST. THERE WAS AN ACFT AT 8000 FT ABOVE HIM THAT I NEEDED TO GET TO 7000 FT. I INSTRUCTED ACR X TO 'DSND AND MAINTAIN 6000 FT, RPT LEAVING 7000 FT.' HE ACKNOWLEDGED 'ROGER, DSNDING TO 6000 FT.' I INSTRUCTED ACR X AGAIN TO RPT LEAVING 7000 FT SO I COULD ASSIGN IT TO ANOTHER ACFT. HE STATES 'WE HAVE SOMEONE ON TCASII RIGHT ABOVE US AT 8000 FT.' I ACKNOWLEDGED HIM AND TOLD HIM THAT WHEN HE LEAVES 7000 FT AND RPTS LEAVING IT, I CAN ASSIGN IT TO ANOTHER ACFT. THIS IS LEGAL SEPARATION IAW 7110.65G PARAGRAPH 6-50. WE DON'T NEED PLTS WITH TCASII, SECOND GUESSING OUR ACTIONS. HE DID NOT RECEIVE AN RA. THIS IS ANOTHER EXAMPLE OF TCASII HAMPERING OUR JOB. TCASII WILL CAUSE A MAJOR MISHAP OR ACCIDENT SOMEWHERE. IT'S ONLY A MATTER OF TIME.
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.