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Approach clearance given to cessna abc, cessna dce took the clearance and read back only partial call sign and controller missed the incorrect readback. Less than standard separation occurred.
| Attributes | |
| ACN | 319300 |
| Time | |
| Date | 199510 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : pae |
| State Reference | WA |
| Altitude | msl bound lower : 3000 msl bound upper : 3000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | artcc : zse |
| Operator | general aviation : instructional |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other descent : approach |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| ASRS Report | 319300 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : clearance non adherence : required legal separation other anomaly other |
| Independent Detector | atc equipment other atc equipment : unspecified |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Miss Distance | horizontal : 6000 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Pilot Deviation Operational Error |
Narrative:
An approach clearance was issued to small aircraft abc. Small aircraft dce responded to the approach clearance utilizing partial call sign 'ce.' the missed readback was not caught and an operational error resulted.
Original NASA ASRS Text
Title: APCH CLRNC GIVEN TO CESSNA ABC, CESSNA DCE TOOK THE CLRNC AND READ BACK ONLY PARTIAL CALL SIGN AND CTLR MISSED THE INCORRECT READBACK. LTSS OCCURRED.
Narrative: AN APCH CLRNC WAS ISSUED TO SMA ABC. SMA DCE RESPONDED TO THE APCH CLRNC UTILIZING PARTIAL CALL SIGN 'CE.' THE MISSED READBACK WAS NOT CAUGHT AND AN OPERATIONAL ERROR RESULTED.
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.