# SDR ASAA2019041658993

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 15, 2019
- Submitted: April 16, 2019
- Operation: Air carrier
- Aircraft: [N468AS](https://openairdocs.org/aircraft/N468AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41735
- Aircraft time: 19,016 hours, 6,259 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Transceiver
- Part number: 8220990004
- Part serial: 40F8MC
- Condition: Failed
- Location: Nr 2 Hf Comms
- Part time: 19,008 hours, 6,252 cycles
- 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/ASAA2019041658993

## Discrepancy

HF #2 DATA FAIL INDICATION. GROUNDED - YES. RMVD & RPLCD #2 HF XCVR IAW B737-900 AMM 23-11-21/401. CHECKED GOOD. SUCCESSFUL ON GROUND VERIFICATION TEST REF AMM TASK 23-11-21-400-801. WINDOW NO 'FAIL' ON BOTH. INSTALLATION TEST OK. OPS NORMAL.

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