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Air carrier was climbed through the altitude of another aircraft resulting in less than standard separation.
| Attributes | |
| ACN | 128173 |
| Time | |
| Date | 198911 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : vhp airport : zid |
| State Reference | IN |
| Altitude | msl bound lower : 10300 msl bound upper : 11000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | general aviation : personal |
| Make Model Name | Small Transport, Low Wing, 2 Recip Eng |
| Flight Phase | cruise other |
| Route In Use | enroute airway : zid |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller non radar : 3 controller radar : 4 |
| ASRS Report | 128173 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | atc equipment other atc equipment : unspecified other controllera |
| Resolutory Action | controller : issued new clearance |
| Consequence | Other |
| Miss Distance | horizontal : 3000 vertical : 700 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Small transport X was level at 11,000' working the next controller. The data block was dropped. Air carrier Y off ind was climbed to FL230 through small transport X's altitude. The mistake was noticed and air carrier Y was told to maintain 10,000'. However, the clearance was issued too late to maintain separation.
Original NASA ASRS Text
Title: ACR WAS CLIMBED THROUGH THE ALT OF ANOTHER ACFT RESULTING IN LESS THAN STANDARD SEPARATION.
Narrative: SMT X WAS LEVEL AT 11,000' WORKING THE NEXT CTLR. THE DATA BLOCK WAS DROPPED. ACR Y OFF IND WAS CLIMBED TO FL230 THROUGH SMT X'S ALT. THE MISTAKE WAS NOTICED AND ACR Y WAS TOLD TO MAINTAIN 10,000'. HOWEVER, THE CLRNC WAS ISSUED TOO LATE TO MAINTAIN SEPARATION.
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.