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Air carrier X descent through occupied altitude had less than standard separation from aircraft Y. System error.
| Attributes | |
| ACN | 300290 |
| Time | |
| Date | 199504 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : sax |
| State Reference | NJ |
| Altitude | msl bound lower : 7000 msl bound upper : 7000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : smo |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent other |
| Route In Use | enroute : direct enroute airway : zbw |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | other : unknown |
| Flight Phase | cruise other |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : handoff position |
| Qualification | controller : radar |
| Experience | controller non radar : 3 controller radar : 3 |
| ASRS Report | 300290 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure |
| Independent Detector | other controllera |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 18000 vertical : 0 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
While coordinating on the land line, air carrier X was given direct sax which put him in conflict with another aircraft Y direct HUD at 70. I noticed the conflict and advised radar controller to use vertical separation. Cause: controller judgement.
Original NASA ASRS Text
Title: ACR X DSCNT THROUGH OCCUPIED ALT HAD LTSS FROM ACFT Y. SYS ERROR.
Narrative: WHILE COORDINATING ON THE LAND LINE, ACR X WAS GIVEN DIRECT SAX WHICH PUT HIM IN CONFLICT WITH ANOTHER ACFT Y DIRECT HUD AT 70. I NOTICED THE CONFLICT AND ADVISED RADAR CTLR TO USE VERT SEPARATION. CAUSE: CTLR JUDGEMENT.
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.