# SDR ASAA2017041920486

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 19, 2017
- Submitted: April 21, 2017
- Operation: Air carrier
- Aircraft: [N533AS](https://openairdocs.org/aircraft/N533AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35201
- Aircraft time: 24,534 hours, 7,175 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Warning Message
- Condition: False Activation
- Location: Nr 2 Hf Comms
- 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/ASAA2017041920486

## Discrepancy

HF RADIO NR 2 FAILED DISPLAYED.  ACFT GROUNDED.  PERFORMED HF COMMUNICATION SYSTEM BITE, FOUND NO FAULT AFTER BITE TEST REF B737-800 FIM 23-11-00-810-801. PERFORMED OPS CHECK OF HF NR 2, GROUND VERIFICATION GOOD IAW AMM 23-11-00.

---
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.