# SDR 95ZZZY0956

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 10, 1995
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N9025N](https://openairdocs.org/aircraft/N9025N), registered now
- Make and model: Bolkms BK117A4
- Aircraft serial: 7137
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Sealing Ring
- Part number: 4639302037
- Condition: Leaking
- Location: M/R Xmsn
- Part time: 19 hours
- Stage of operation: IN
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/95ZZZY0956

## Discrepancy

SEALING RING LEAKING  BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT(S), CORRECTED PROBLEM.

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