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Air carrier medium large transport answered wrong call sign with similar a/north and incurred altitude deviation from assigned.
| Attributes | |
| ACN | 105248 |
| Time | |
| Date | 198902 |
| Day | Thu |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : clt |
| State Reference | NC |
| Altitude | msl bound lower : 18000 msl bound upper : 23000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : ztl |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | descent other |
| Route In Use | enroute airway : ztl |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 180 flight time total : 18000 flight time type : 5000 |
| ASRS Report | 105248 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We were in cruise at FL230. Our identify was ab xxz. There was also an ab xwz on frequency. We took a radio call to descend from FL230 to FL180 and read it back to controller with ab xxz. This was a descent at pilot's discretion. We remained at FL230 and were given a frequency change. About 70 mi out of clt we reported out of FL230 for FL180. The controller acknowledged the descent and a minute or 2 later said the previous controller stated we had accepted a clearance for another aircraft. New controller stated no problem as he had no traffic. As ab xxz we had transmitted to both controllers 3 times we had clearance to FL180 with no correction on any call!
Original NASA ASRS Text
Title: ACR MLG ANSWERED WRONG CALL SIGN WITH SIMILAR A/N AND INCURRED ALT DEVIATION FROM ASSIGNED.
Narrative: WE WERE IN CRUISE AT FL230. OUR IDENT WAS AB XXZ. THERE WAS ALSO AN AB XWZ ON FREQ. WE TOOK A RADIO CALL TO DSND FROM FL230 TO FL180 AND READ IT BACK TO CTLR WITH AB XXZ. THIS WAS A DSCNT AT PLT'S DISCRETION. WE REMAINED AT FL230 AND WERE GIVEN A FREQ CHANGE. ABOUT 70 MI OUT OF CLT WE RPTED OUT OF FL230 FOR FL180. THE CTLR ACKNOWLEDGED THE DSCNT AND A MINUTE OR 2 LATER SAID THE PREVIOUS CTLR STATED WE HAD ACCEPTED A CLRNC FOR ANOTHER ACFT. NEW CTLR STATED NO PROB AS HE HAD NO TFC. AS AB XXZ WE HAD XMITTED TO BOTH CTLRS 3 TIMES WE HAD CLRNC TO FL180 WITH NO CORRECTION ON ANY CALL!
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.