# SDR P3T2010F00000

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 14, 2010
- Submitted: June 18, 2010
- Operation: Air carrier
- Aircraft: [N206PA](https://openairdocs.org/aircraft/N206PA), registered now
- Make and model: Bell 206B
- Registry model: [Bell 206B](https://openairdocs.org/model/bell-206b) (OpenAirDocs)
- Aircraft serial: 999
- Engine: Allsn 250C20B
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Spindle
- Part number: 206031554003
- Part serial: B1210039
- Condition: Corroded
- Location: Transmission
- Component: Transmission
- Component part number: 206040002015
- 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/P3T2010F00000

## Discrepancy

TRANSMISSION SPINDLE MOUNT,  WAS FOUND TO HAVE EXCESSIVE PITTING CORROSION DURING A 1200 HR TRANSMISSION TOP CASE INSPECTION.  R & R WITH -0-TT, NEW SPINDLE.  SENT OLD CORE TO VENDOR BUT UPON NDT INSP, VENDOR REJECTED CORE DUE TO POSSIBLE STRESS CRACKS AND WAS THEREFORE SCRAPPED.  PROBABLE CAUSE: DUE TO METAL FATIGUE BECAUSE OF AGE OF COMPONENT.  COMPONENT IS NOT TRACKED AS A TIME LIFE COMPONENT AND IS ONLY NDT`D AT 2400 HR TRANSMISSION O/H.  REQUIRE COMPONENT TO BE NDT`D AT 1200 HR INSPECTION IN ADDITION TO 2400 TRANSMISSION O/H AND/OR INTRODUCE TIME LIFE LIMIT ON SPINDLE.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.