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N90 controller experienced operational error at 6000 ft when adjacent controller entered airspace without coordination.
| Attributes | |
| ACN | 668373 |
| Time | |
| Date | 200508 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : ewr.airport |
| State Reference | NJ |
| Altitude | msl single value : 6000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : n90.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : n90.tracon |
| Operator | general aviation : corporate |
| Make Model Name | Gulfstream IV |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller time certified in position1 : 13 controller time certified in position2 : 3 |
| ASRS Report | 668373 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller radar : 23 |
| ASRS Report | 668372 |
| Events | |
| Anomaly | airspace violation : entry conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert other controllera other controllerb |
| Resolutory Action | controller : issued new clearance controller : issued alert flight crew : took evasive action |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 16080 vertical : 400 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Deviation Operational Error |
Narrative:
While working the ard/penns position at N90 ewr sector; I noticed the conflict alert go off. I saw one of my aircraft in close proximity to another aircraft. I gave a traffic call to the B737 I was working with an immediate descent to 5000 ft. The conflict alert/data blocks showed both aircraft at 6000 ft. The controller working the G-4 also gave a control instruction to climb. After the instruction; the G-4 pilot said he had the traffic in sight. The controller then said 'maintain visual separation.' separation had been lost in the process. The G-4 was in my airspace without a pointout; I had no knowledge that he was there.
Original NASA ASRS Text
Title: N90 CTLR EXPERIENCED OPERROR AT 6000 FT WHEN ADJACENT CTLR ENTERED AIRSPACE WITHOUT COORD.
Narrative: WHILE WORKING THE ARD/PENNS POS AT N90 EWR SECTOR; I NOTICED THE CONFLICT ALERT GO OFF. I SAW ONE OF MY ACFT IN CLOSE PROX TO ANOTHER ACFT. I GAVE A TFC CALL TO THE B737 I WAS WORKING WITH AN IMMEDIATE DSCNT TO 5000 FT. THE CONFLICT ALERT/DATA BLOCKS SHOWED BOTH ACFT AT 6000 FT. THE CTLR WORKING THE G-4 ALSO GAVE A CTL INSTRUCTION TO CLB. AFTER THE INSTRUCTION; THE G-4 PLT SAID HE HAD THE TFC IN SIGHT. THE CTLR THEN SAID 'MAINTAIN VISUAL SEPARATION.' SEPARATION HAD BEEN LOST IN THE PROCESS. THE G-4 WAS IN MY AIRSPACE WITHOUT A POINTOUT; I HAD NO KNOWLEDGE THAT HE WAS THERE.
Data retrieved from NASA's ASRS site as of January 2009 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.