# SDR AC2A2021072213901

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 21, 2021
- Submitted: July 22, 2021
- Operation: Air carrier
- Aircraft: [N639DS](https://openairdocs.org/aircraft/N639DS), registered now
- Make and model: Agusta AW139
- Registry model: [Agusta AW139](https://openairdocs.org/model/agustawestland-philadelphia-aw139) (OpenAirDocs)
- Aircraft serial: 41262
- Aircraft time: 7,256 hours, 13,175 cycles
- System (JASC): [6321 · Main Rotor Brake](https://openairdocs.org/jasc/6321)
- Part: Actuator
- Part number: 3G6352V02452
- Part serial: 2672
- Condition: Stuck
- Location: Rotor Brake
- Part time: 24 hours, 24 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AC2A2021072213901

## Discrepancy

ROTOR BRAKE CAS FAIL MESSAGE ILLUMINATED ON SHUTDOWN, ACTUATOR STUCK IN UP POSITION.

---
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.