# SDR YENA2023032200274

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 21, 2023
- Submitted: March 22, 2023
- Operation: Air carrier
- Aircraft: [N4073J](https://openairdocs.org/aircraft/N4073J), registered now
- Make and model: Airbus A321-271N
- Registry model: [Airbus A321-271N](https://openairdocs.org/model/airbus-a321-271n) (OpenAirDocs)
- Aircraft serial: 11129
- Aircraft time: 9 hours, 3 cycles
- System (JASC): [2311 · UHF Communications System](https://openairdocs.org/jasc/2311)
- Part: Unknown
- Condition: Unknown
- Location: Unknown
- Stage of operation: CR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2023032200274

## Discrepancy

FLT#1620, BOS-LHR. (ETOPS) 'HF RADIO 1 IN INTERMITTENT WORKED EARLY IN FLIGHT BUT TRANSMISSIONS ARE INTERMITTENT BY 30 DEGREES W. RECEPTION SEEMS OK. HF 2 WORKED AS NORMAL ( HF COMMUNICATIONS (LRCS) ); PERFORMED OPERATIONAL TEST IAW AMM 23-11-00 TEST OK SYSTEM FUNCTIONS NORMALLY AT THIS TIME.MDDR CLOSED MX4-UPDATED PLACARD REMOVED.

---
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.