# SDR ASAA2023051643239

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 16, 2023
- Submitted: May 17, 2023
- Operation: Air carrier
- Aircraft: [N492AS](https://openairdocs.org/aircraft/N492AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 44110
- Aircraft time: 27,643 hours, 8,687 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Transceiver
- Part number: 8220990004
- Part serial: 180V2H
- Condition: Inoperative
- Location: E/E Bay
- Part time: 40,556 hours, 11,976 cycles
- Stage of operation: NR
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023051643239

## Discrepancy

HF #2 APPEARS TO BE INOP. NO STATIC, NO TUNING TONE. NOTHING ON CARDINAL FREQ'S. GROUNDED - YES. CONFIRMED #2 HF INOP. RMVD & RPLCD #2 HF TRANSCEIVER REF B737-900 AMM 23-11-21.

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