# SDR ASAA2019121973641

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 17, 2019
- Submitted: December 19, 2019
- Operation: Air carrier
- Aircraft: [N587AS](https://openairdocs.org/aircraft/N587AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35684
- Aircraft time: 46,563 hours, 13,543 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Transceiver
- Part number: 8220990004
- Part serial: 16G021
- Condition: Failed
- Location: Nr 1 Hf
- Part time: 46,913 hours, 13,771 cycles
- Stage of operation: NR
- 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/ASAA2019121973641

## Discrepancy

HF #1 WILL TUNE & RECEIVE BUT WILL NOT TRANSMIT VOICE. GROUNDED - YES. R&R #1 HF TRANSCEIVER REF AMM 23-11-21 GROUND VERIFICATION NML

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.