# SDR ASAA2017010719249

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 7, 2017
- Submitted: January 10, 2017
- Operation: Air carrier
- Aircraft: [N474AS](https://openairdocs.org/aircraft/N474AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 40715
- Aircraft time: 6,120 hours, 2,005 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Warning Light
- Condition: False Activation
- Location: Nr 2 Hf Sys
- 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/ASAA2017010719249

## Discrepancy

NR 2 HF FAIL DISPLAYED IN FREQUENCY WINDOW.  ACFT GROUNDED. PERFORMED OPS TEST OF NR 2 HF COMMUNICATION SYSTEM. OPS CHECKED GOOD. PERFORMED SYSTEM TEST OF NR 2 HF COMMUNICATION SYSTEM. OPS TEST GOOD IAW AMM 23-11-00.

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