# SDR ASAA2014051107766

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 11, 2014
- Submitted: May 22, 2014
- Operation: Air carrier
- Aircraft: [N530AS](https://openairdocs.org/aircraft/N530AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 36578
- Aircraft time: 16,151 hours, 4,832 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Coupler
- Part number: 8220987004
- Part serial: 178248
- Condition: Malfunctioned
- Location: Hf Antenna
- Part time: 7,406 hours, 2,122 cycles
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2014051107766

## Discrepancy

NR 1 HF WILL NOT TRANSMIT.  ACFT GROUNDED.  RESET SYS POWER PERFORMED FIM TASK IAW AMM 23-11-801.  BITE OF HF SYSTEM PASSED, NO FAULTS FOUND. GROUND VERIFICATION CHECKED OK NO HISTORY PAST 30 DAYS.  SYSTEM RESTORED.  REPLACED HF ANTENNA COUPLER #1 REF AMM TASK 23-11-61. ACCOMPLISHED FIM 23-11 TASK 801 FOR BOTH HF SYS. BITE PROCEDURE PASSED. NO FAULTS NOTED.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.