# SDR 98ZZZX3223

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 1, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Filed by: [WGI Inc, repair station WNFR711K](https://openairdocs.org/faa-repair-station/WNFR711K/wgi-inc.md) (OpenAirDocs)
- Engine: Pwa PW4056
- System (JASC): [7230 · Turbine Engine Compressor Section](https://openairdocs.org/jasc/7230)
- Part: Seal Seat
- Part number: 50B050
- Condition: Cracked
- Location: Nr 1 Bearing
- 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/98ZZZX3223

## Discrepancy

CRACKS FOUND IN BASE METAL AFTER CHROME SEAL FACE IS REMOVED.  SUSPECT CAUSE IS HEAT.  CRACKS IN CHROME ARE TRANSFERRED INTO BASE METAL.

---
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.