# SDR HEEA967691

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 22, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N3893P
- Make and model: Bell 412
- Registry model: [Bell 412](https://openairdocs.org/model/bell-412) (OpenAirDocs)
- Aircraft serial: 33012
- System (JASC): [6520 · Tail Rotor Gearbox](https://openairdocs.org/jasc/6520)
- Part: Case Assy
- Part number: 212040468001
- Condition: Port Missing
- Location: Bearing Lube
- Part time: 5,934 hours
- Component: 212040004009
- 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/HEEA967691

## Discrepancy

T/R GEARBOX REMOVED DUE TO METAL IN OIL.  FOUND OUTPUT DUPLEX BEARING P/N 212-040-456-001, S/N J6885, T.T. 1669:25 SPALLED.  LUBRICATION PORT TO FEED BEARING, NOT PRESENT IN ABOVE MENTIONED CASE ASSY, CAUSING BEARING FAILURE.

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