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ZNY controller conducting OJT training experienced operational error at FL230 while vectoring for in-trail spacing.
| Attributes | |
| ACN | 627018 |
| Time | |
| Date | 200408 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : stw.vor |
| State Reference | NJ |
| Altitude | msl bound lower : 22000 msl bound upper : 23000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : intermediate altitude |
| Route In Use | arrival : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zny.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : intermediate altitude |
| Route In Use | arrival : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar pilot : instrument |
| Experience | controller radar : 20 controller time certified in position1 : 19 flight time total : 1200 |
| ASRS Report | 627018 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar instruction : trainee |
| Qualification | controller : developmental |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert other controllera |
| Resolutory Action | controller : issued alert |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 16800 vertical : 400 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
I was training at sector 35. I was taking traffic sector 49 15 mi in-trail. Both aircraft were being vectored for spacing. 1ST aircraft was given direct stw. A slow turn to stw. 2ND aircraft was on same course but different altitude. I was talking to the 1ST aircraft at FL230. 2ND aircraft sector 49 had was at FL240. 1ST aircraft northbound to stw at FL230. 2ND aircraft 10 mi away from stw at FL240. 2ND aircraft checks on frequency leaving FL240 down to FL230. I turn 1ST aircraft east and descend to FL190 good rate of descent through FL220. 20 seconds later I ask pilot of the #1 aircraft say altitude. Pilot responds, FL230. Loss of separation occurs.
Original NASA ASRS Text
Title: ZNY CTLR CONDUCTING OJT TRAINING EXPERIENCED OPERROR AT FL230 WHILE VECTORING FOR IN-TRAIL SPACING.
Narrative: I WAS TRAINING AT SECTOR 35. I WAS TAKING TFC SECTOR 49 15 MI IN-TRAIL. BOTH ACFT WERE BEING VECTORED FOR SPACING. 1ST ACFT WAS GIVEN DIRECT STW. A SLOW TURN TO STW. 2ND ACFT WAS ON SAME COURSE BUT DIFFERENT ALT. I WAS TALKING TO THE 1ST ACFT AT FL230. 2ND ACFT SECTOR 49 HAD WAS AT FL240. 1ST ACFT NBOUND TO STW AT FL230. 2ND ACFT 10 MI AWAY FROM STW AT FL240. 2ND ACFT CHKS ON FREQ LEAVING FL240 DOWN TO FL230. I TURN 1ST ACFT E AND DSND TO FL190 GOOD RATE OF DSCNT THROUGH FL220. 20 SECONDS LATER I ASK PLT OF THE #1 ACFT SAY ALT. PLT RESPONDS, FL230. LOSS OF SEPARATION OCCURS.
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.