# SDR ASAA2018052124727

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 21, 2018
- Submitted: June 27, 2018
- Operation: Air carrier
- Aircraft: [N529AS](https://openairdocs.org/aircraft/N529AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35198
- Aircraft time: 31,822 hours, 9,532 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Coupler
- Part number: 8220987004
- Part serial: 158011
- Condition: Failed
- Location: Hf Comm
- Part time: 38,055 hours, 11,297 cycles
- Stage of operation: NR
- 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/ASAA2018052124727

## Discrepancy

NR 2 HF WILL NOT TRANSMIT. GROUNDED - YES. REMOVED, REPLACED AND TESTED NR 2 HF ANTENNA COUPLER REF AMM 23-11-61. OPS NORMAL.

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