# SDR AMTA200700360

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 21, 2007
- Submitted: July 31, 2007
- Operation: Air carrier
- Aircraft: [N522AT](https://openairdocs.org/aircraft/N522AT), registered now
- Make and model: Boeing 757-23N
- Registry model: [Boeing 757-23N](https://openairdocs.org/model/boeing-757-23n) (OpenAirDocs)
- Aircraft serial: 29330
- Engine: Rroyce RB211535E4
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Transceiver
- Part number: 9640452012
- Part serial: 0515
- Condition: Malfunctioned
- Location: Rt Hf System
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AMTA200700360

## Discrepancy

RT HF RADIO DOES NOT CHANNELIZE ONLY ABOUT A 15 SECOND LOUD HUM FOLLOWS CHANNELIZATION ATTEMPT.  REMOVED AND REPLACED TRANSCEIVER OPS CHECK OK IAW MM 23-11-03.  (K)

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