# SDR USAA2014050500034

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 4, 2014
- Submitted: May 5, 2014
- Operation: Air carrier
- Aircraft: [N740UW](https://openairdocs.org/aircraft/N740UW), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1265
- Aircraft time: 38,190 hours, 22,830 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Coupler
- Part number: 9640453001
- Part serial: 0545
- Condition: Faulty
- Location: Hf Comm
- Part time: 28,834 hours, 4,196 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: G
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2014050500034

## Discrepancy

EN-ROUTE FROM PHL TO BDA.  CREW REPORTED THEY WERE UNABLE TO ESTABLISH COMMUNICATIONS ON EITHER HF1 OR HF2.  FLIGHT RETURNED TO FIELD AT PHL & LANDED WITHOUT INCIDENT.  R & R HF COUPLER, 4RE1, USING AMM 23-11-36-001-A & 23-11-36-400-001-A. PERFORMED SUCCESSFUL OPERATION CHECK OF HF SYS USING AMM TASK 23-11-00-710-001-A.

---
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.