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Twin engine air carrier turboprop questions okc trs practice of dual frequency transmition when aircraft on approach are attempting to obtain a landing clearance.
| Attributes | |
| ACN | 550374 |
| Time | |
| Date | 200206 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : okc.airport |
| State Reference | OK |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : okc.tower |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 16200 flight time type : 1500 |
| ASRS Report | 550374 |
| Person 2 | |
| Affiliation | government : faa |
| Function | flight crew : first officer |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Situations | |
| ATC Facility | procedure or policy : okc.tower staffing : okc.tower |
Narrative:
While conducting an ILS 17R approach to will rogers world airport (kokc) was unable to contact tower for landing clearance. Flight was not turned over to tower by approach control and 4 attempts were made to contact the tower on frequency 119.35. Oklahoma city is class C airspace yet the tower insists on operating both ground and tower on 119.35. This is the cause of many unanswered, misunderstood and confusing radio transitions. The tower was talking on ground while trying to clarify a clearance while this flight was attempting to contact the tower. Unacceptable. Callback conversation with reporter revealed the following information: reporter advised that this appears to be common mode of operation at okc, day or night, weekday as well as weekend.
Original NASA ASRS Text
Title: TWIN ENG ACR TURBOPROP QUESTIONS OKC TRS PRACTICE OF DUAL FREQ TRANSMITION WHEN ACFT ON APCH ARE ATTEMPTING TO OBTAIN A LNDG CLRNC.
Narrative: WHILE CONDUCTING AN ILS 17R APCH TO WILL ROGERS WORLD ARPT (KOKC) WAS UNABLE TO CONTACT TWR FOR LNDG CLRNC. FLT WAS NOT TURNED OVER TO TWR BY APCH CTL AND 4 ATTEMPTS WERE MADE TO CONTACT THE TWR ON FREQ 119.35. OKLAHOMA CITY IS CLASS C AIRSPACE YET THE TWR INSISTS ON OPERATING BOTH GND AND TWR ON 119.35. THIS IS THE CAUSE OF MANY UNANSWERED, MISUNDERSTOOD AND CONFUSING RADIO TRANSITIONS. THE TWR WAS TALKING ON GND WHILE TRYING TO CLARIFY A CLRNC WHILE THIS FLT WAS ATTEMPTING TO CONTACT THE TWR. UNACCEPTABLE. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR ADVISED THAT THIS APPEARS TO BE COMMON MODE OF OP AT OKC, DAY OR NIGHT, WEEKDAY AS WELL AS WEEKEND.
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.