# SDR BAQA200700027

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 21, 2007
- Submitted: August 28, 2007
- Operation: Air carrier
- Aircraft: [N235U](https://openairdocs.org/aircraft/N235U), registered now
- Make and model: Urocop EC135T1
- Registry model: [Urocop EC135T1](https://openairdocs.org/model/eurocopter-deutschland-ec135t1) (OpenAirDocs)
- Aircraft serial: 0548
- Aircraft time: 27 hours, 98 cycles
- System (JASC): [6330 · Main Rotor Transmission Mount](https://openairdocs.org/jasc/6330)
- Part: Mount
- Part number: L633M2010107
- Part serial: 14541453
- Condition: Out Of Tolerance
- Location: M/R Gearbox
- Part time: 27 hours, 98 cycles
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/BAQA200700027

## Discrepancy

PILOT REPORTED MAIN ROTOR VIBRATION IN FLIGHT.  INSPECTED  Z-ARIS MOUNTS AN FOUND THE LT REAR AND LT FORWARD, Z-ARIS MOUNTS IN UNSERVICABLE CONDITION.  REMOVED AND REPLACED Z-ARIS MOUNTS.  PERFORMED TRACK AND BALANCE OF MAIN ROTOR.  NO FURTHER DEFECTS NOTED.

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