# SDR ASAA2020030932376

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 6, 2020
- Submitted: March 10, 2020
- Operation: Air carrier
- Aircraft: [N536AS](https://openairdocs.org/aircraft/N536AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35203
- Aircraft time: 31,575 hours, 9,007 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Unknown
- Condition: Malfunctioned
- Location: Hf Comm
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2020030932376

## Discrepancy

AFTER TAKE OFF, UNABLE TO TRANSMIT ON HF # 2 COULD HEAR AND RECEIVE SELCAL ON HF # 2. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 23-11 TASK 806 # 2 HF OPS CHK NORMAL, SUCCESSFUL GROUND VERIFICATION ACCOMPLISHED WITH SAN FRANCISCO.

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