|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||0001 To 0600|
|Locale Reference||atc facility : atl|
airport : fty
|Altitude||msl bound lower : 2500|
msl bound upper : 5000
|Controlling Facilities||tracon : atl|
tower : mlb
|Operator||general aviation : corporate|
|Make Model Name||Light Transport, Low Wing, 2 Turbojet Eng|
|Flight Phase||cruise other|
|Route In Use||enroute : on vectors|
|Function||flight crew : captain|
oversight : pic
|Qualification||pilot : atp|
|Experience||flight time last 90 days : 111|
flight time total : 15829
flight time type : 3529
|Function||flight crew : first officer|
|Qualification||pilot : atp|
|Anomaly||altitude deviation : excursion from assigned altitude|
non adherence : clearance
|Independent Detector||other controllera|
|Resolutory Action||controller : issued new clearance|
|Air Traffic Incident||other|
While descending into the atl area on the 024 degree right of the atl VOR, inside of the tegre intersection, the crew received a transmission '(call sign) des to 2500.' the copilot responded with '(call sign) out of 5000 for 2500.' several mins later the controller asked if we were at 5000'. The copilot responded, 'we are at 2500.' the controller then responded, 'you must have let down on another aircraft's clearance, climb to 3000'.' no further xmissions were made concerning the discrepancy in altitude and the aircraft was vectored to the destination airport. The incident was discussed after landing and at breakfast the next morning. We were both certain that the controller had stated our call sign when we were clrd from 5000 to 2500'. At no time did either of us hear an aircraft with similar call sign on the frequency. Neither of us heard another aircraft respond to the des clearance, however, at that time of night a controller may be working several frequencys rather than 1 primary frequency.
Original NASA ASRS Text
Title: CPR LTT ALT DEVIATION EXCURSION FROM CLRNC ALT IN RESPONSE TO WRONG CALL SIGN.
Narrative: WHILE DSNDING INTO THE ATL AREA ON THE 024 DEG R OF THE ATL VOR, INSIDE OF THE TEGRE INTXN, THE CREW RECEIVED A XMISSION '(CALL SIGN) DES TO 2500.' THE COPLT RESPONDED WITH '(CALL SIGN) OUT OF 5000 FOR 2500.' SEVERAL MINS LATER THE CTLR ASKED IF WE WERE AT 5000'. THE COPLT RESPONDED, 'WE ARE AT 2500.' THE CTLR THEN RESPONDED, 'YOU MUST HAVE LET DOWN ON ANOTHER ACFT'S CLRNC, CLB TO 3000'.' NO FURTHER XMISSIONS WERE MADE CONCERNING THE DISCREPANCY IN ALT AND THE ACFT WAS VECTORED TO THE DEST ARPT. THE INCIDENT WAS DISCUSSED AFTER LNDG AND AT BREAKFAST THE NEXT MORNING. WE WERE BOTH CERTAIN THAT THE CTLR HAD STATED OUR CALL SIGN WHEN WE WERE CLRD FROM 5000 TO 2500'. AT NO TIME DID EITHER OF US HEAR AN ACFT WITH SIMILAR CALL SIGN ON THE FREQ. NEITHER OF US HEARD ANOTHER ACFT RESPOND TO THE DES CLRNC, HOWEVER, AT THAT TIME OF NIGHT A CTLR MAY BE WORKING SEVERAL FREQS RATHER THAN 1 PRIMARY FREQ.
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.