# SDR ASAA2017080621551

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 6, 2017
- Submitted: August 8, 2017
- Operation: Air carrier
- Aircraft: [N530AS](https://openairdocs.org/aircraft/N530AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 36578
- Aircraft time: 28,599 hours, 8,522 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Transceiver
- Part number: 8220990004
- Part serial: 3768
- Condition: Failed
- Location: Hf Comms
- Part time: 23,213 hours, 6,803 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017080621551

## Discrepancy

HF 2 RADIO DISPLAYS FAIL ON BOTH ACTIVE & STANDBY FREQUENCY WITHOUT SIDE TONE TRANSMISSION.  ACFT GROUNDED.  PERFORMED A BITE CHECK IAW FIM 23-11-801, NO FAULTS. REMOVED AND REPLACED NR 2 HF TRANSCEIVER IAW AMM 23-11-21-000-801 AND 23-11-21-400-801. NO FURTHER FAULTS NOTED. GROUND VERIFICATION GOOD.

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