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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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ARTCC interfacility coordination atx climb to occupied altitude had less than standard separation with air carrier Y. System error.
| Attributes | |
| ACN | 215283 |
| Time | |
| Date | 199207 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : mol |
| State Reference | VA |
| Altitude | msl bound lower : 22000 msl bound upper : 22000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc |
| Operator | common carrier : air taxi |
| Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar controller : developmental |
| Experience | controller radar : 3 |
| ASRS Report | 215283 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : flight data |
| Qualification | controller : non radar |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation other anomaly other |
| Independent Detector | atc equipment other atc equipment : unspecified |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 27000 vertical : 400 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error Inter Facility Coordination Failure |
Narrative:
Air carrier Y at cruise was the other aircraft involved. My left side thought that sector 60 was stopping the air taxi Y at FL210. He put that altitude in the data block, after restating what he heard on the handoff line. Sector 60 failed to hear what he said and thought we were going to stop atx X. At the time my left side put in the int altitude, atx X was already on our frequency climbing to FL220. We were busy and he had not heard atx X check on. The 2 got together at 220 with 4.5 mi and 600 ft. I was controller a for not seeing the altitude deviation in time, even though I was not made aware of any communication between my left side and sector 60. My left side was controller B. R60 controller got nothing. In my opinion he should be held accountable also because he missed a readback. Had he listened to what my left side said, or used correct phraseology when he coordinated with my left side, the whole thing would have never happened.
Original NASA ASRS Text
Title: ARTCC INTERFAC COORD ATX CLB TO OCCUPIED ALT HAD LTSS WITH ACR Y. SYS ERROR.
Narrative: ACR Y AT CRUISE WAS THE OTHER ACFT INVOLVED. MY L SIDE THOUGHT THAT SECTOR 60 WAS STOPPING THE AIR TAXI Y AT FL210. HE PUT THAT ALT IN THE DATA BLOCK, AFTER RESTATING WHAT HE HEARD ON THE HDOF LINE. SECTOR 60 FAILED TO HEAR WHAT HE SAID AND THOUGHT WE WERE GOING TO STOP ATX X. AT THE TIME MY L SIDE PUT IN THE INT ALT, ATX X WAS ALREADY ON OUR FREQ CLBING TO FL220. WE WERE BUSY AND HE HAD NOT HEARD ATX X CHK ON. THE 2 GOT TOGETHER AT 220 WITH 4.5 MI AND 600 FT. I WAS CTLR A FOR NOT SEEING THE ALTDEV IN TIME, EVEN THOUGH I WAS NOT MADE AWARE OF ANY COM BTWN MY L SIDE AND SECTOR 60. MY L SIDE WAS CTLR B. R60 CTLR GOT NOTHING. IN MY OPINION HE SHOULD BE HELD ACCOUNTABLE ALSO BECAUSE HE MISSED A READBACK. HAD HE LISTENED TO WHAT MY L SIDE SAID, OR USED CORRECT PHRASEOLOGY WHEN HE COORDINATED WITH MY L SIDE, THE WHOLE THING WOULD HAVE NEVER HAPPENED.
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.