# SDR XNOA01146

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 20, 2003
- Submitted: August 20, 2003
- Operation: Air carrier
- Aircraft: [N473AS](https://openairdocs.org/aircraft/N473AS), registered now
- Make and model: Airbus A300 B4-203
- Registry model: [Airbus A300 B4-203](https://openairdocs.org/model/airbus-industrie-a300-b4-203) (OpenAirDocs)
- Aircraft serial: 203
- System (JASC): [2312 · VHF Communications System](https://openairdocs.org/jasc/2312)
- Part: Radio
- Condition: Inoperative
- Location: Vhf System
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/XNOA01146

## Discrepancy

NR 1 VHF RADIO WILL NOT TRANSMIT OR RECEIVE. NR 2 VHF WILL ONLY TRANSMIT ON 121.9.  DISCONNECTED AND RECONNECTED THE CAPTAINS FREQUENCY SELECT PANEL AND AUDIO SELECT PANEL. PERFORMED OPERATIONAL CHECKOUT OF THE NR 1 VHF COMM.SYS. ON FREQUENIES 129.07 AND 121.9.SYSTEM OPS CHECKS IAW MM 23-21-00.  DISCONNECTED AND RECONNECTED THE F/O'S FREQUENCY SELECT PANEL AND THE AUDIO SELECT PANEL. PERFORMED OPERATIONAL CHECKOUT OF THE NR 2 VHF COMM. SYS. ON FREQS 129.07 & 133.225. SYS OPS CHECKS IAW MM 23-21-00.

---
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.