# SDR ASAA2013031094130

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 10, 2013
- Submitted: March 15, 2013
- Operation: Air carrier
- Aircraft: [N516AS](https://openairdocs.org/aircraft/N516AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 39044
- Aircraft time: 16,311 hours, 5,119 cycles
- Engine: Cfmint CFM567B273
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Coupler
- Part number: 8220987004
- Part serial: 178253
- Condition: Failed
- Location: Hf Radio
- Part time: 4,342 hours, 1,225 cycles
- Stage of operation: CR
- 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/ASAA2013031094130

## Discrepancy

HF1 AND HF2 VOICE TRANSMIT REPORTED WEAK MID-PACIFIC.  RESUMED WORKING FURTHER WEST.  HF2 DATA WORKED OK.  ACFT GROUNDED.  REF AMM 23-11-61-400-801, REMOVED HF COUPLER FOR THE NR 2 POSITION. GROUND VERIFICATION CHECK SUCCESSFUL.  ACFT OK FOR SERVICE.

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