# SDR ASAA2026082666545

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 26, 2026
- Submitted: August 28, 2026
- Operation: Air carrier
- Aircraft: [N381HA](https://openairdocs.org/aircraft/N381HA), registered now
- Make and model: Airbus A330-243
- Registry model: [Airbus A330-243](https://openairdocs.org/model/airbus-a330-243) (OpenAirDocs)
- Aircraft serial: 1114
- Aircraft time: 64,787 hours, 10,536 cycles
- System (JASC): [2311 · UHF Communications System](https://openairdocs.org/jasc/2311)
- Part: Coupler
- Part number: 9640453001
- Part serial: 01991
- Condition: Unserviceable
- Location: Hf 1 Antanna
- Part time: 116,796 hours, 12,696 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2026082666545

## Discrepancy

ATB. HF NR 1 UNABLE TO TRANSMIT. TRIED NUMEROUS TIMES, NUMEROUS FREQUENCIES AND ALL 3 RNPS UNSUCCESSFUL. GROUNDED - YES. REMOVED AND REPLACED HF 1 COUPLER PER AMM 23-11-36. OPS CHECK GOOD. NO DEFECT NOTED. OK FOR SERVICE.

---
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.