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A90 controller described a loss of required separation claiming the lag time on frequency transmissions was a causal factor.
| Attributes | |
| ACN | 975595 |
| Time | |
| Date | 201110 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | A90.TRACON |
| State Reference | NH |
| Aircraft 1 | |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Final Approach |
| Flight Plan | IFR |
| Person 1 | |
| Function | Departure Approach |
| Qualification | Air Traffic Control Fully Certified |
| Person 2 | |
| Function | Departure Approach |
| Qualification | Air Traffic Control Fully Certified |
| Events | |
| Anomaly | ATC Issue All Types |
Narrative:
[I was] working the runway 4R final at bos; IFR; a good tailwind that became a headwind inside the marker. [We were] losing about 1 1/2 miles inside the marker. Previous arrivals showing 120 KTS ground speed to touchdown. A DH8 [was] on a 2 mile final showing 100 KTS ground speed. A B737 which was switched to the tower 6-7 miles out was sent around by the tower. Prior to the tower sending the aircraft a proximity event had occurred resulting in 2.46 miles instead of 2.5 or greater. Controllers at the boston consolidated TRACON since arriving in the new building in 2004 have continuously complained about the lag time in frequency transmissions. This continually causes numerous block transmissions as well as several none acknowledgments by the pilots making you guess if your transmission is actually going out. This increases controller frustration and complexity. Continue to put pressure on the A90 management to get the controllers the best equipment to do the job.
Original NASA ASRS Text
Title: A90 Controller described a loss of required separation claiming the lag time on frequency transmissions was a causal factor.
Narrative: [I was] working the Runway 4R final at BOS; IFR; a good tailwind that became a headwind inside the marker. [We were] losing about 1 1/2 miles inside the marker. Previous arrivals showing 120 KTS ground speed to touchdown. A DH8 [was] on a 2 mile final showing 100 KTS ground speed. A B737 which was switched to the Tower 6-7 miles out was sent around by the tower. Prior to the tower sending the aircraft a proximity event had occurred resulting in 2.46 miles instead of 2.5 or greater. Controllers at the Boston consolidated TRACON since arriving in the new building in 2004 have continuously complained about the lag time in frequency transmissions. This continually causes numerous block transmissions as well as several none acknowledgments by the pilots making you guess if your transmission is actually going out. This increases controller frustration and complexity. Continue to put pressure on the A90 Management to get the Controllers the best equipment to do the job.
Data retrieved from NASA's ASRS site as of April 2012 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.