# SDR ASAA2017042220503

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 22, 2017
- Submitted: April 24, 2017
- Operation: Air carrier
- Aircraft: [N462AS](https://openairdocs.org/aircraft/N462AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36362
- Aircraft time: 11,782 hours, 3,871 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Unknown
- Condition: Malfunctioned
- Location: Hf Comm
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017042220503

## Discrepancy

HF NR 2 IS INDICATING "FAIL" ON CONTROL HEAD. GROUNDED - YES. ACCOMPLISHED HF NR 2 COMMUNICATION SYSTEM OPERATIONAL TEST, OPS NML REF AMM 23-11-00-710-801. ACCOMPLISHED HF NR 2 COMMUNICATION SYSTEM TEST, OPS NML REF AMM 23-11-00-730-801. NO HISTORY LAST 60 DAYS. GROUND VERIFICATION SUCCESSFUL AND AIRCRAFT RETURN TO SERVICE.

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