# SDR ASAA2022070538956

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 5, 2022
- Submitted: July 7, 2022
- Operation: Air carrier
- Aircraft: [N519AS](https://openairdocs.org/aircraft/N519AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 36482
- Aircraft time: 48,783 hours, 14,333 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Transceiver
- Part number: 8220990004
- Part serial: 17H336
- Condition: Inoperative
- Location: E/E Rack E8
- Part time: 47,351 hours, 13,695 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/ASAA2022070538956

## Discrepancy

HF 1 RADIO RECEIVE ONLY. UNABLE TO TRANSMIT. GROUNDED - YES. #1 HF WOULD NOT TEST. REMOVED AND REPLACED # 1 HF TRANSCEIVER PER B737-800 AMM 23-11-21. HF 1 TRANSMITS BUT RECEIVES GARBLED. FLIGHT VERIFICATION SUCCESSFUL, #1 AND #2 HF TRANSMIT/ RECEIVE NORMAL.

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