# SDR ALG2006F00011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 24, 2006
- Submitted: February 8, 2006
- Operation: Air carrier
- Aircraft: [N497AL](https://openairdocs.org/aircraft/N497AL), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 53172
- Engine: Allsn 250C47B
- System (JASC): [6420 · Tail Rotor Head](https://openairdocs.org/jasc/6420)
- Part: Pitch Link
- Condition: Loose
- Location: Tail Rotor
- Stage of operation: NR
- 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/ALG2006F00011

## Discrepancy

IN FLIGHT, TAIL ROTOR PRODUCED A VIBRATING NOISE.  TIGHTEN T/R PC LINK CAP NUT ONE FLAT.  INSPECTED SYSTEM AND CHECKED WITH VIBRATION GEAR.  EVERYTHING CHECKED OK.  ALL WORK IAW MM.  (K)

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