# SDR ASAA2019032428773

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 24, 2019
- Submitted: March 26, 2019
- Operation: Air carrier
- Aircraft: [N518AS](https://openairdocs.org/aircraft/N518AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35693
- Aircraft time: 38,873 hours, 11,581 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Transceiver
- Part number: 8220990004
- Part serial: 16G012
- Condition: Inoperative
- Location: Hf Comm
- Part time: 41,951 hours, 12,439 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2019032428773

## Discrepancy

NUMBER 1 HF RADIO HAS NO SOUND OR SIDETONE. GROUNDED - YES. WENT TO BITE NR 1 HF TRANSCEIVER, FOUND NR 1 HF TRANSCEIVER INOP. R & R NR 1 HF TRANSCEIVER, REF AMM 23-11-21-000-801/400-801. PERFORMED NR 2 HF BITE TEST AND OPS CHECK. NR 1 HF OPS NORMAL.

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