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Cpr X descent through occupied altitude, had less than standard separation from air carrier Y. System error.
| Attributes | |
| ACN | 282883 |
| Time | |
| Date | 199409 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : hyp |
| State Reference | CA |
| Altitude | msl bound lower : 23000 msl bound upper : 23000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zoa |
| Operator | general aviation : corporate |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent other |
| Route In Use | arrival other |
| 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 |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar controller : developmental |
| Experience | controller non radar : 1 controller radar : 1 |
| ASRS Report | 282833 |
| Person 2 | |
| Affiliation | Other |
| 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 | none taken : detected after the fact |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 19200 vertical : 700 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Cpr X on the el nido 3 arrival was descending out of FL245 for FL240. Air carrier Y was at FL230 sebound. Cpr X was descended to FL120 with restrs without reference to air carrier Y.
Original NASA ASRS Text
Title: CPR X DSCNT THROUGH OCCUPIED ALT, HAD LTSS FROM ACR Y. SYS ERROR.
Narrative: CPR X ON THE EL NIDO 3 ARR WAS DSNDING OUT OF FL245 FOR FL240. ACR Y WAS AT FL230 SEBOUND. CPR X WAS DSNDED TO FL120 WITH RESTRS WITHOUT REF TO ACR Y.
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.