# SDR QML4201202170441

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 15, 2012
- Submitted: February 17, 2012
- Operation: Air carrier
- Aircraft: [N163BF](https://openairdocs.org/aircraft/N163BF), registered now
- Make and model: Urocop EC 135 P2
- Registry model: [Urocop EC 135 P2](https://openairdocs.org/model/eurocopter-deutschland-ec-135-p2) (OpenAirDocs)
- Aircraft serial: 0671
- Aircraft time: 1,665 hours, 8,002 cycles
- System (JASC): [5302 · Rotorcraft Tail Boom](https://openairdocs.org/jasc/5302)
- Part: Tail Boom
- Part number: L535H14505
- Part serial: ECE677
- Condition: Corroded
- Part time: 1,665 hours, 8,002 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QML4201202170441

## Discrepancy

DURING ROUTINE 800 HOUR/ 3 YEAR INSPECTION,  FOUND EVIDENCE OF CORROSION BETWEEN TAIL ROTOR STATOR ARMS AND STATOR ATTACHMENT CUPS AT 5 LOCATIONS.   REVEALED THIS CORROSION IS NOT REPAIRABLE AT FIELD LEVEL AND WAS DIRECTED TO SHIP TAILBOOM TO MFG FOR FURTHER EVALUATION AND REPAIR.

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