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B727 aircraft reporter captain states that at some foreign airport's approach controllers have all aircraft on same transponder code and can easily become confused which aircraft is which. It could lead to dangerous dscnts, etc.
| Attributes | |
| ACN | 381935 |
| Time | |
| Date | 199710 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : gua |
| State Reference | FO |
| Aircraft 1 | |
| Controlling Facilities | tracon : gua |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 381935 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : unable |
| Consequence | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
| Situations | |
| ATC Facility | procedure or policy : unspecified |
Narrative:
In light of the recent indonesia accident, maybe it would be advisable for us to emphasize the importance of knowing precisely where you are before accepting turns/dscnts given to you by ATC. Some areas where that can easily occur are gua and sjo where approach control has every aircraft squawk the same IFF code and misident by ATC is especially likely when several aircraft are deviating for WX.
Original NASA ASRS Text
Title: B727 ACFT RPTR CAPT STATES THAT AT SOME FOREIGN ARPT'S APCH CTLRS HAVE ALL ACFT ON SAME XPONDER CODE AND CAN EASILY BECOME CONFUSED WHICH ACFT IS WHICH. IT COULD LEAD TO DANGEROUS DSCNTS, ETC.
Narrative: IN LIGHT OF THE RECENT INDONESIA ACCIDENT, MAYBE IT WOULD BE ADVISABLE FOR US TO EMPHASIZE THE IMPORTANCE OF KNOWING PRECISELY WHERE YOU ARE BEFORE ACCEPTING TURNS/DSCNTS GIVEN TO YOU BY ATC. SOME AREAS WHERE THAT CAN EASILY OCCUR ARE GUA AND SJO WHERE APCH CTL HAS EVERY ACFT SQUAWK THE SAME IFF CODE AND MISIDENT BY ATC IS ESPECIALLY LIKELY WHEN SEVERAL ACFT ARE DEVIATING FOR WX.
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.