# SDR AU960096

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 30, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- Make and model: Bell 206B
- Registry model: [Bell 206B](https://openairdocs.org/model/bell-206b) (OpenAirDocs)
- Engine: Allsn
- System (JASC): [5302 · Rotorcraft Tail Boom](https://openairdocs.org/jasc/5302)
- Part: Tail Boom
- Part number: 206031004071
- Condition: Corroded
- Location: Main Frame Sys
- Component: Bell, 206B
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AU960096

## Discrepancy

(AUS) TAILBOOM ASSEMBLY CONTAINED EXFOLIATION CORROSION IN THE TOP LH  SECTION ADJACENT TO THE FIRST HANGER BEARING SUPPORT - FURTHER INVESTIGATION FOUND SIGNIFICANT EXFOLIATION CORROSION AND TWO  CRACKS - CRACK LENGTHS 20MM (0.787IN) AND 15MM (0.59IN) - SUSPECTCAUSED BY A RIVET WITH A MISSING HEAD ALLOWING WATER TO INGRESS  BETWEEN THE SKIN AND A RIB WITH CORROSION CAUSING THE SKIN TOBULGE AND CRACK

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