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ATC equipment problem radio transmitter 133 pt 37 unreadable when controller keys microphone. Intermittent problem.
| Attributes | |
| ACN | 281219 |
| Time | |
| Date | 199408 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : zau |
| State Reference | IL |
| Aircraft 1 | |
| Controlling Facilities | artcc : zau |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 281219 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | other |
Narrative:
We had a lot of trouble getting our rerte instructions from ZAU on frequency 133.37. The controller told us it was a recurring problem. This disruption of communication came at a very bad time -- WX ahead and lots of airplanes getting vectors. The frequency cuts out periodically when the controller keys his microphone. I think he can hear the airplanes all the time, but from the ground up to the flts, spotty at best.
Original NASA ASRS Text
Title: ATC EQUIP PROB RADIO XMITTER 133 PT 37 UNREADABLE WHEN CTLR KEYS MIKE. INTERMITTENT PROB.
Narrative: WE HAD A LOT OF TROUBLE GETTING OUR RERTE INSTRUCTIONS FROM ZAU ON FREQ 133.37. THE CTLR TOLD US IT WAS A RECURRING PROB. THIS DISRUPTION OF COM CAME AT A VERY BAD TIME -- WX AHEAD AND LOTS OF AIRPLANES GETTING VECTORS. THE FREQ CUTS OUT PERIODICALLY WHEN THE CTLR KEYS HIS MIKE. I THINK HE CAN HEAR THE AIRPLANES ALL THE TIME, BUT FROM THE GND UP TO THE FLTS, SPOTTY AT BEST.
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.