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Helicopter pilot had no response from ral ATCT local controller. Other ATC facilities had normal radio contact. Later radio contact with ral tower was normal.
| Attributes | |
| ACN | 512410 |
| Time | |
| Date | 200105 |
| Day | Tue |
| Place | |
| Locale Reference | airport : ral.airport |
| State Reference | CA |
| Altitude | msl single value : 1500 |
| Environment | |
| Flight Conditions | Marginal |
| Light | Daylight |
| Aircraft 1 | |
| Operator | general aviation : corporate |
| Make Model Name | Helicopter |
| Flight Phase | cruise : level |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : corporate |
| Function | flight crew : single pilot |
| Qualification | pilot : cfi pilot : commercial |
| Experience | flight time last 90 days : 20 flight time total : 3000 flight time type : 2000 |
| ASRS Report | 512410 |
| Events | |
| Anomaly | other anomaly other |
| Resolutory Action | other |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
Narrative:
I tried to contact ral tower and did not get a response. After several tries, I broadcast to 'riverside traffic.' after clearing ral, I called cno tower and got an immediate response. I don't know what was wrong. I rechked the tower frequency and found it was correct. When I departed cno about 1 hour later, I called ral tower and got an immediate response. I don't know why they did not respond to my radio. As I heard cno clearly a few seconds later, I don't think it was my radio.
Original NASA ASRS Text
Title: HELI PLT HAD NO RESPONSE FROM RAL ATCT LCL CTLR. OTHER ATC FACILITIES HAD NORMAL RADIO CONTACT. LATER RADIO CONTACT WITH RAL TWR WAS NORMAL.
Narrative: I TRIED TO CONTACT RAL TWR AND DID NOT GET A RESPONSE. AFTER SEVERAL TRIES, I BROADCAST TO 'RIVERSIDE TFC.' AFTER CLRING RAL, I CALLED CNO TWR AND GOT AN IMMEDIATE RESPONSE. I DON'T KNOW WHAT WAS WRONG. I RECHKED THE TWR FREQ AND FOUND IT WAS CORRECT. WHEN I DEPARTED CNO ABOUT 1 HR LATER, I CALLED RAL TWR AND GOT AN IMMEDIATE RESPONSE. I DON'T KNOW WHY THEY DID NOT RESPOND TO MY RADIO. AS I HEARD CNO CLRLY A FEW SECONDS LATER, I DON'T THINK IT WAS MY RADIO.
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.