# SDR 8HBR20190211021

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 10, 2019
- Submitted: February 12, 2019
- Operation: General aviation
- Filed by: [Hillsboro Aero Academy LLC, repair station 8HBR698C](https://openairdocs.org/faa-repair-station/8HBR698C/hillsboro-aero-academy-llc.md) (OpenAirDocs)
- Aircraft: [N508AD](https://openairdocs.org/aircraft/N508AD), registered now
- Make and model: Robsin R22BETAII
- Aircraft serial: 3290
- Aircraft time: 6,619 hours
- System (JASC): [6520 · Tail Rotor Gearbox](https://openairdocs.org/jasc/6520)
- Part: Seal
- Part number: A9662
- Condition: Damaged
- Location: T/R Gearbox
- Part time: 32 hours
- Component: T/R Gearbox, Robsin
- Component part number: B0211
- Stage of operation: LD
- How discovered: O
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/8HBR20190211021

## Discrepancy

TAIL ROTOR GEAR BOX INPUT SEAL LEAKING OIL FROM GEAR BOX.

---
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.