# SDR N431MA

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 10, 2004
- Submitted: March 11, 2004
- Operation: Air carrier
- Aircraft: [N431MA](https://openairdocs.org/aircraft/N431MA), registered now
- Make and model: Bell 222U
- Registry model: [Bell 222U](https://openairdocs.org/model/bell-222u) (OpenAirDocs)
- Aircraft serial: 47504
- Engine: Lyc LTS101750C1
- Engine time: 6,764 hours
- System (JASC): [6330 · Main Rotor Transmission Mount](https://openairdocs.org/jasc/6330)
- Part: Mount
- Part number: 222331617103
- Part serial: LK0200
- Condition: Debonded
- Location: M/R Gearbox
- Stage of operation: NR
- How discovered: O
- Nature of condition: E
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/N431MA

## Discrepancy

ENROUTE TO THE HOSPITAL FOR PATIENT PICKUP. STRONG 2 PER REV VIBRATION EXPERIENCED. LANDED AT PSP AIRPORT. CONTACTED MAINTENANCE FOR REPAIRS. AFTER TROUBLESHOOTING FOUND LATERAL ISOLATION MOUNT DE-BONDED. REMOVED AND INSTALLED SERVICEABLE UNIT.

---
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.