# SDR ASAA2015092413195

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 24, 2015
- Submitted: September 28, 2015
- Operation: Air carrier
- Aircraft: [N508AS](https://openairdocs.org/aircraft/N508AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35691
- Aircraft time: 27,428 hours, 8,399 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Transmitter
- Condition: Malfunctioned
- Location: Nr 1 Hf
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2015092413195

## Discrepancy

NR 1 HF RADIO RECEIVING TRANSMISSION UNREADABLE. ACFT GROUNDED. ACCOMPLISHED HF BITE IAW FIM 23-11, TASK 801.  FOUND HF TRANSCEIVER LRU FAILED.  ACCOMPLISHED FIM 23-11, TASK 803. ALL TESTS PASSED.  FAULT WAS INTERMITTENT.  SYSTEM GROUND VERIFICATION GOOD.  REF FIM 23-11, TASK 806. NO HISTORY LAST 30 DAYS.

---
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.