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ARTCC controller cleared wrong aircraft to climb creating less than standard separation. Similar a/north on 2 aircraft.
| Attributes | |
| ACN | 83804 |
| Time | |
| Date | 198803 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : gld |
| State Reference | KS |
| Altitude | msl bound lower : 29600 msl bound upper : 31000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdv |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | cruise other |
| Route In Use | enroute airway : zdv |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| ASRS Report | 83804 |
| Person 2 | |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | atc equipment other atc equipment : unspecified |
| Resolutory Action | none taken : unable |
| Consequence | Other |
| Miss Distance | horizontal : 18000 vertical : 1400 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Large transport X swbnd over gld FL310. Medium large transport Y eastbound 10 east of gld FL290. Medium large transport Z over gld eastbound at FL290. Intention was to clear medium large transport Y from FL290 to FL330, but for some reason medium large transport Z was cleared instead resulting in loss of sep 1400' and 3 mi.
Original NASA ASRS Text
Title: ARTCC CTLR CLEARED WRONG ACFT TO CLIMB CREATING LESS THAN STANDARD SEPARATION. SIMILAR A/N ON 2 ACFT.
Narrative: LGT X SWBND OVER GLD FL310. MLG Y EBND 10 E OF GLD FL290. MLG Z OVER GLD EBND AT FL290. INTENTION WAS TO CLR MLG Y FROM FL290 TO FL330, BUT FOR SOME REASON MLG Z WAS CLRED INSTEAD RESULTING IN LOSS OF SEP 1400' AND 3 MI.
Data retrieved from NASA's ASRS site as of August 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.