# SDR ASAA2020112533588

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 25, 2020
- Submitted: December 1, 2020
- Operation: Air carrier
- Aircraft: [N562AS](https://openairdocs.org/aircraft/N562AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35091
- Aircraft time: 52,560 hours, 15,592 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Hf Comm
- Condition: Malfunctioned
- Location: Nr 1
- Stage of operation: NR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2020112533588

## Discrepancy

HF NR 1 HAS BOTH "FAIL" FLAGS DISPLAYED ON RADIO CONTROL PANEL.  GROUNDED-YES.  CYCLED AIRCRAFT POWER, PERFORMED BITE CHECK, REF B737-800 FIM TASK 28-11-00-810-801.  OPERATIONS CHECK GOOD.

---
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.
