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Small aircraft on IFR flight plan to osh has radio failure. Can receive but not transmit. Follows IFR radio out procedures.
| Attributes | |
| ACN | 184839 |
| Time | |
| Date | 199107 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : osh |
| State Reference | WI |
| Altitude | agl bound lower : 0 agl bound upper : 800 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : osh tower : osh |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft, High Wing, 1 Eng, Fixed Gear |
| Flight Phase | descent : approach landing other |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument pilot : commercial pilot : cfi |
| Experience | flight time last 90 days : 75 flight time total : 900 flight time type : 300 |
| ASRS Report | 184839 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : non radar |
| Events | |
| Anomaly | aircraft equipment problem : less severe other anomaly other |
| Independent Detector | other other : unspecified cockpit |
| Resolutory Action | flight crew : declared emergency other |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
After being handed off from chicago center to oshkosh approach, approach said our transmission was garbled and asked us to change frequencys. In going from one radio to the other the radio selector knob on the audio panel broke in the #3 position, where no radio exists. We could hear approach and tower ok but we could not transmit. During the convention (just prior) oshkosh airspace is pandemonium - I elected to follow IFR radio out procedures and land VFR without a landing clearance. No conflict occurred. I could hear tower advising other aircraft of our NORDO situation (because we were not answering them) and that they hoped we would 'land short' so others could land long. At that time I could not tell if tower even knew we were IFR traffic. After landing (very short) but well on the appropriate section of the runway, we immediately exited the runway onto the grass and I called (after tying down) green bay FSS to close the flight plan (since I didn't think tower would do it) and asked green bay to call oshkosh tower and explain what happened - he said he would. Tense moments!
Original NASA ASRS Text
Title: SMA ON IFR FLT PLAN TO OSH HAS RADIO FAILURE. CAN RECEIVE BUT NOT XMIT. FOLLOWS IFR RADIO OUT PROCS.
Narrative: AFTER BEING HANDED OFF FROM CHICAGO CENTER TO OSHKOSH APCH, APCH SAID OUR XMISSION WAS GARBLED AND ASKED US TO CHANGE FREQS. IN GOING FROM ONE RADIO TO THE OTHER THE RADIO SELECTOR KNOB ON THE AUDIO PANEL BROKE IN THE #3 POS, WHERE NO RADIO EXISTS. WE COULD HEAR APCH AND TWR OK BUT WE COULD NOT XMIT. DURING THE CONVENTION (JUST PRIOR) OSHKOSH AIRSPACE IS PANDEMONIUM - I ELECTED TO FOLLOW IFR RADIO OUT PROCS AND LAND VFR WITHOUT A LNDG CLRNC. NO CONFLICT OCCURRED. I COULD HEAR TWR ADVISING OTHER ACFT OF OUR NORDO SITUATION (BECAUSE WE WERE NOT ANSWERING THEM) AND THAT THEY HOPED WE WOULD 'LAND SHORT' SO OTHERS COULD LAND LONG. AT THAT TIME I COULD NOT TELL IF TWR EVEN KNEW WE WERE IFR TFC. AFTER LNDG (VERY SHORT) BUT WELL ON THE APPROPRIATE SECTION OF THE RWY, WE IMMEDIATELY EXITED THE RWY ONTO THE GRASS AND I CALLED (AFTER TYING DOWN) GREEN BAY FSS TO CLOSE THE FLT PLAN (SINCE I DIDN'T THINK TWR WOULD DO IT) AND ASKED GREEN BAY TO CALL OSHKOSH TWR AND EXPLAIN WHAT HAPPENED - HE SAID HE WOULD. TENSE MOMENTS!
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.