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Air carrier X climb through occupied altitude had less than standard separation from air carrier Y. System error.
| Attributes | |
| ACN | 263848 |
| Time | |
| Date | 199402 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : cae |
| State Reference | MD |
| Altitude | msl bound lower : 29000 msl bound upper : 29000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zjx |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| ASRS Report | 263848 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 21000 vertical : 700 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Traffic northbound on J75, FL290. Traffic eastbound air carrier Y FL290. Air carrier X sbound J75 FL280. After passing northbound traffic at FL290, I climbed air carrier X to FL310. By the time I realized air carrier X would not sufficiently pass behind air carrier Y, I issued turns to both aircraft, but it was too late to avoid loss of separation. Simple human error.
Original NASA ASRS Text
Title: ACR X CLB THROUGH OCCUPIED ALT HAD LTSS FROM ACR Y. SYS ERROR.
Narrative: TFC NBOUND ON J75, FL290. TFC EBOUND ACR Y FL290. ACR X SBOUND J75 FL280. AFTER PASSING NBOUND TFC AT FL290, I CLBED ACR X TO FL310. BY THE TIME I REALIZED ACR X WOULD NOT SUFFICIENTLY PASS BEHIND ACR Y, I ISSUED TURNS TO BOTH ACFT, BUT IT WAS TOO LATE TO AVOID LOSS OF SEPARATION. SIMPLE HUMAN ERROR.
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.