# SDR ASAA1058322

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 3, 2010
- Submitted: October 5, 2010
- Operation: Air carrier
- Aircraft: [N559AS](https://openairdocs.org/aircraft/N559AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35178
- Aircraft time: 15,342 hours, 4,599 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Hf Comm
- Condition: Malfunctioned
- Location: Cockpit
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA1058322

## Discrepancy

HF NR 2 WILL NOT TRANSMIT FROM EITHER AUDIO PANEL, THE TUNING TONE & RECEPTION IS GOOD.  DIVERSION TIME 65 MINUTES.  ACCOMPLISHED HF BITE CHECK PER FIM 23 11 TASK 801.  BITE CHECK OK.  GROUND OPS CHECK ALSO OK.  AS PRECAUTION REPLACED NR 2 HF TRANSCEIVER AMM 23 11 21 & NR 2 COUPLER PER AMM 23 11 61.  HF NR 2 SYSTEMS, OPS NORMAL.

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