# SDR ASAA2020112233582

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 22, 2020
- Submitted: November 25, 2020
- Operation: Air carrier
- Aircraft: [N535AS](https://openairdocs.org/aircraft/N535AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35200
- Aircraft time: 36,421 hours, 10,509 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Hf Comm
- Condition: Malfunctioned
- Location: Nr 2
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2020112233582

## Discrepancy

FAIL SHOWING HF2 BOTH ACTIVE AND STANDBY DISPLAYS, GOOD SELCAL.  GROUNDED-YES.  PERFORMED HF2 BITE TEST, REF B737-800 FIM 23-11 TASK 802 AND TASK 801.

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