# SDR 2NVA202210310003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 25, 2022
- Submitted: October 31, 2022
- Operation: Air carrier
- Aircraft: [N746RH](https://openairdocs.org/aircraft/N746RH), registered now
- Make and model: Snias AS350B2
- Aircraft serial: 2603
- Aircraft time: 14,017 hours, 64,973 cycles
- Engine: Tmeca ARRIEL1D1
- Engine time: 4,894 hours, 3,662 cycles
- System (JASC): [6400 · Tail Rotor System](https://openairdocs.org/jasc/6400)
- Part: Spar
- Condition: Cracked
- Location: Tail Rotor
- Part time: 3,756 hours
- 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/2NVA202210310003

## Discrepancy

PILOT REPORTED NOISE FROM TAIL ROTOR DURING ROUTINE PREFLIGHT CHECK. REMOVAL AND INSPECTION OF TAIL ROTOR ASSEMBLY REVEALED A SPLINTERED SPAR OUTSIDE OF ALLOWABLE CRITERIA. COMPONENT HAD REACHED 94% OF ITS LIFE LIMIT. REPLACED WITH NEW PART.

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