# SDR YV3R2020091700346

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 11, 2020
- Submitted: September 17, 2020
- Operation: General aviation
- Aircraft: OH-HE
- Make and model: Robsin R44RAVENII
- Aircraft serial: 12490
- Aircraft time: 826 hours
- Engine: Lyc IO540AE1A5
- System (JASC): [6720 · Tail Rotor Control System](https://openairdocs.org/jasc/6720)
- Part: Pitch Control
- Part number: C0311
- Part serial: 11898
- Condition: Defective
- Location: Tail Rotor
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YV3R2020091700346

## Discrepancy

CUSTOMER REPORTED TAIL ROTOR PITCH CONTROL P/N: C031-1 HAD AN UNUSUAL BEARING NOISE AFTER ENGINE SHUT DOWN, WHILE DRIVE TRAIN STILL RUNNING.

---
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.