# SDR EVCA201701281

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 28, 2017
- Submitted: January 31, 2017
- Operation: Air carrier
- Aircraft: [N105AE](https://openairdocs.org/aircraft/N105AE), registered now
- Make and model: Bell 206L-1
- Registry model: [Bell 206L-1](https://openairdocs.org/model/bell-helicopter-textron-206l-1) (OpenAirDocs)
- Aircraft serial: 45297
- Aircraft time: 34,882 hours, 28,612 cycles
- System (JASC): [7120 · Engine Mount Section](https://openairdocs.org/jasc/7120)
- Part: Mount
- Part number: 206033670104
- Condition: Damaged
- Location: Engine Bay
- Stage of operation: IN
- How discovered: V
- Nature of condition: Z, S
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/EVCA201701281

## Discrepancy

FOUND RIGHT HAND MID ENGINE MOUNT HOLE TO BE ELONGATED MEASURING .280/.286" WHEN NOMINAL HOLE SIZE IS .247/.251". THIS ABNORMAL ELONGATION OF THE HOLE RESULTED IN ENGINE SHIFTING OUT OF PROPER ALIGNMENT CAUSING THE MAIN DRIVESHAFT TO RUB AGAINST THE ROTOR BRAKE CALIPER COVER MOUNTED ON THE FIREWALL CAUSING SIGNIFICANT DAMAGE TO THE DRIVESHAFT.

---
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.