# SDR ASAA2021102736413

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 27, 2021
- Submitted: October 28, 2021
- Operation: Air carrier
- Aircraft: [N506AS](https://openairdocs.org/aircraft/N506AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35690
- Aircraft time: 48,730 hours, 14,724 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: NR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021102736413

## Discrepancy

HF FAIL LIGHT BOTH RADIOS. GROUNDED - YES. PERFORMED HF COMM SYSTEM BITE PER B737-800 FIM TASK 23-11-00-810-801, OPS CHECK GOOD, HF FAIL LIGHTS EXTINGUISHED ON RADIOS.

---
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.