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ARTCC controller working 2 aircraft with similar call signs missed an erroneous readback, which resulted in an operational error.
| Attributes | |
| ACN | 567365 |
| Time | |
| Date | 200212 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : zmp.artcc |
| State Reference | MN |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zmp.artcc |
| Operator | general aviation : personal |
| Make Model Name | IAI1124/1124A/Westwind |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : vacating altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zmp.artcc |
| Operator | general aviation : personal |
| Make Model Name | M-20 G Statesman |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| ASRS Report | 567365 |
| Person 2 | |
| Affiliation | other |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure |
| Independent Detector | atc equipment : conflict alert |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 9000 vertical : 800 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
WW24 was issued 9000 ft. Another aircraft with similar call sign was issued descent clearance. Both aircraft read back clearance. I missed WW24 erroneous readback.
Original NASA ASRS Text
Title: ARTCC CTLR WORKING 2 ACFT WITH SIMILAR CALL SIGNS MISSED AN ERRONEOUS READBACK, WHICH RESULTED IN AN OPERROR.
Narrative: WW24 WAS ISSUED 9000 FT. ANOTHER ACFT WITH SIMILAR CALL SIGN WAS ISSUED DSCNT CLRNC. BOTH ACFT READ BACK CLRNC. I MISSED WW24 ERRONEOUS READBACK.
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.