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GA pilot reported that on two different occasions; a loud noise on frequency in the ZLA sector resulted in a loss communications with ATC.
| Attributes | |
| ACN | 1535845 |
| Time | |
| Date | 201804 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZLA.ARTCC |
| State Reference | CA |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Skylane 182/RG Turbo Skylane/RG |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Descent |
| Route In Use | Vectors Visual Approach |
| Flight Plan | IFR |
| Person 1 | |
| Function | Enroute Pilot Flying Single Pilot |
| Qualification | Flight Crew Commercial |
| Experience | Flight Crew Last 90 Days 18 Flight Crew Total 619 Flight Crew Type 577 |
| Events | |
| Anomaly | ATC Issue All Types Deviation - Procedural Published Material / Policy |
Narrative:
Enroute to ipl and had just passed the jli VORTAC while in contact with ZLA - los angeles center. We were given a new frequency to contact ZLA on 128.6 and upon changing frequency; we found there was a loud noise almost like another aircraft was transmitting a carrier signal with no voice. This continued in the background despite changing radios to make sure it wasn't an equipment issue. During the change to and from the primary transceiver; we lost contact momentarily with ZLA center. On approach to ipl; I was given a phone number to contact supervisor at ZLA and upon arrival at ipl; I called and reported issue with frequency. Spoke to supervisor and explained the difficulty-hearing controller despite changing transceivers. Supervisor noted the issue and said he would have it addressed. On departure from ipl; we again were given the same frequency; 128.6; for flight following and experienced the same problem. We requested if another frequency was available for the sector and were told there was none. Upon changing to the next controller sector; the noise disappeared.
Original NASA ASRS Text
Title: GA pilot reported that on two different occasions; a loud noise on frequency in the ZLA sector resulted in a loss communications with ATC.
Narrative: Enroute to IPL and had just passed the JLI VORTAC while in contact with ZLA - Los Angeles Center. We were given a new frequency to contact ZLA on 128.6 and upon changing frequency; we found there was a loud noise almost like another aircraft was transmitting a carrier signal with no voice. This continued in the background despite changing radios to make sure it wasn't an equipment issue. During the change to and from the primary transceiver; we lost contact momentarily with ZLA Center. On approach to IPL; I was given a phone number to contact supervisor at ZLA and upon arrival at IPL; I called and reported issue with frequency. Spoke to Supervisor and explained the difficulty-hearing controller despite changing transceivers. Supervisor noted the issue and said he would have it addressed. On departure from IPL; we again were given the same frequency; 128.6; for flight following and experienced the same problem. We requested if another frequency was available for the sector and were told there was none. Upon changing to the next controller sector; the noise disappeared.
Data retrieved from NASA's ASRS site 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.