# SDR ASAA2022041438042

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 14, 2022
- Submitted: April 18, 2022
- Operation: Air carrier
- Aircraft: [N535AS](https://openairdocs.org/aircraft/N535AS), registered now
- Make and model: Boeing 737
- Aircraft serial: 35200
- Aircraft time: 41,061 hours, 11,777 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: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022041438042

## Discrepancy

DISPLAY FOR HF 2 "FAIL". WHEN FREQ IS SWAPPED, FAIL IS NO LONGER DISPLAYED. RADIO APPEARS TO FUNCTION NORMALLY. GROUNDED - YES. RESET SYSTEM BY CYCLING AIRCRAFT POWER, HF #2 "FAIL" ANNUNCIATION NO LONGER PRESENT. ETOPS GROUND VERIFICATION TEST GOOD IAW B737-800 AMM 23-11-00-710-801,

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