# SDR 9JLA2023041322997

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 10, 2023
- Submitted: April 13, 2023
- Operation: Air carrier
- Aircraft: [N120SB](https://openairdocs.org/aircraft/N120SB), registered now
- Make and model: Gulstm GIV
- Aircraft serial: 1462
- Aircraft time: 8,190 hours, 4,190 cycles
- System (JASC): [3450 · Dependent Position Determining System](https://openairdocs.org/jasc/3450)
- Part: Antenna
- Part number: 5671575145
- Part serial: 8244999
- Condition: Failed
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K, K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9JLA2023041322997

## Discrepancy

FLIGHT CREW REPORTED THE ADSB SYSTEM WAS INTERMITTENT. THE MAINTENANCE BASE TROUBLESHOT AND FOUND THE ADSB ANTENNA AT FAULT. THE DEFECTIVE WAS REMOVED AND A NEW ANTENNA WAS INSTALLED. OPS CHECKS WERE SATISFACTORY, AND THE AIRCRAFT WAS RETURNED TO 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.