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Approach controller voiced concern regarding a company's change to four digit call signs alleging safety could be jeopardized.
| Attributes | |
| ACN | 810637 |
| Time | |
| Date | 200811 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tower : zzz.tower |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tower : zzz.tower |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : radar |
| Experience | controller limited radar : 17 controller radar : 3 |
| ASRS Report | 810637 |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | none taken : anomaly accepted |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance Company FAA |
| Primary Problem | Company |
Narrative:
A few months ago air carrier X began to use 4 numbers to identify their flights into and out of ZZZ. Since then we have experienced multiple similar sounding call signs. This could lead to an aircraft incident or accident. I was working the X position and had two aircraft on final with similar sounding call signs.
Original NASA ASRS Text
Title: APPROACH CONTROLLER VOICED CONCERN REGARDING A COMPANY'S CHANGE TO FOUR DIGIT CALL SIGNS ALLEGING SAFETY COULD BE JEOPARDIZED.
Narrative: A FEW MONTHS AGO ACR X BEGAN TO USE 4 NUMBERS TO IDENTIFY THEIR FLIGHTS INTO AND OUT OF ZZZ. SINCE THEN WE HAVE EXPERIENCED MULTIPLE SIMILAR SOUNDING CALL SIGNS. THIS COULD LEAD TO AN AIRCRAFT INCIDENT OR ACCIDENT. I WAS WORKING THE X POSITION AND HAD TWO ACFT ON FINAL WITH SIMILAR SOUNDING CALL SIGNS.
Data retrieved from NASA's ASRS site as of May 2009 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.