# SDR HEEA0013667

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 30, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N86CH](https://openairdocs.org/aircraft/N86CH), registered now
- Make and model: Bolkms BO105S
- Aircraft serial: S557
- Engine: Allsn 250C20B
- System (JASC): [7260 · Turbine Engine Accessory Drive](https://openairdocs.org/jasc/7260)
- Part: Gearbox Cover
- Part number: 23055464
- Condition: Leaking
- Location: Aft Tm Bore
- Component: 6894171
- Stage of operation: IN
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HEEA0013667

## Discrepancy

ENGINE REMOVED DUE TO AFT T/M LEAK.  INSPECTION REVEALED:  LEAKING AT COVER AFT T/M BORE.

---
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.