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Shortly after being handed off to tul approach, the pilot of an air carrier could hear mem approach control overlapping on the frequency.
| Attributes | |
| ACN | 446370 |
| Time | |
| Date | 199908 |
| Day | Mon |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : tul.airport |
| State Reference | OK |
| Altitude | msl single value : 9500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | tracon : tul.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 8000 flight time type : 5200 |
| ASRS Report | 446370 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | controller : issued advisory flight crew : overcame equipment problem |
| Supplementary | |
| Problem Areas | ATC Facility |
| Primary Problem | ATC Facility |
| Situations | |
| ATC Facility | communication equipment : tul.tracon other physical facility |
| Airspace Structure | class e : tul.e |
Narrative:
Shortly after center handed us off to tul approach, we began hearing other aircraft talking to mem approach on the same frequency, 119.1. I asked approach if this has happened before, he was fairly nonchalant stating 'yes, happens all the time, we've reported it.' tul, while not a high-density airport, certainly has multiple IFR targets on approach frequency. I've been there when there was 2 military aircraft in the radar pattern, several other commercial aircraft arriving/departing, and civil/local IFR traffic. To allow frequency overlap with another approach could certainly lead to blocked/missed calls, potentially generating a traffic conflict and hazard (especially when deviating around WX, etc). Sure be smarter if one of the 2 agencies, tul approach or mem approach, would change frequencys.
Original NASA ASRS Text
Title: SHORTLY AFTER BEING HANDED OFF TO TUL APCH, THE PLT OF AN ACR COULD HEAR MEM APCH CTL OVERLAPPING ON THE FREQ.
Narrative: SHORTLY AFTER CTR HANDED US OFF TO TUL APCH, WE BEGAN HEARING OTHER ACFT TALKING TO MEM APCH ON THE SAME FREQ, 119.1. I ASKED APCH IF THIS HAS HAPPENED BEFORE, HE WAS FAIRLY NONCHALANT STATING 'YES, HAPPENS ALL THE TIME, WE'VE RPTED IT.' TUL, WHILE NOT A HIGH-DENSITY ARPT, CERTAINLY HAS MULTIPLE IFR TARGETS ON APCH FREQ. I'VE BEEN THERE WHEN THERE WAS 2 MIL ACFT IN THE RADAR PATTERN, SEVERAL OTHER COMMERCIAL ACFT ARRIVING/DEPARTING, AND CIVIL/LCL IFR TFC. TO ALLOW FREQ OVERLAP WITH ANOTHER APCH COULD CERTAINLY LEAD TO BLOCKED/MISSED CALLS, POTENTIALLY GENERATING A TFC CONFLICT AND HAZARD (ESPECIALLY WHEN DEVIATING AROUND WX, ETC). SURE BE SMARTER IF ONE OF THE 2 AGENCIES, TUL APCH OR MEM APCH, WOULD CHANGE FREQS.
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.