# SDR YTRR117247

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 8, 2007
- Submitted: September 12, 2007
- Operation: Air carrier
- Aircraft: N167RL
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 53167
- Aircraft time: 8,338 hours
- Engine: Allsn 250C47B
- System (JASC): [6410 · Tail Rotor Blades](https://openairdocs.org/jasc/6410)
- Part: Balance Weight
- Condition: Missing
- Location: T/R Blade
- Part time: 3,974 hours
- Stage of operation: CR
- How discovered: O
- Nature of condition: E
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YTRR117247

## Discrepancy

IN CRUISE FLIGHT THE PILOT EXPERINCED A SEVERE VIBRATION IN THE TAIL ROTOR. UPON RETURN TO BASE, IT WAS DISCOVERED THAT THE TAIL ROTOR BLADE HAD A TIP WEIGHT MISSING. THE TAIL ROTOR BLADE HAD BEEN REPAIRED IN JUNE 2007 AND HAD ACCUMULATED  APPROXIMATELY 205.8 HRS SINCE REPAIR.

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