# SDR KC1R20250630155

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 30, 2025
- Submitted: June 30, 2025
- Operation: General aviation
- Filed by: [Barnes Aerospace, Windsor Airmotive Division, repair station KC1R265K](https://openairdocs.org/faa-repair-station/KC1R265K/barnes-aerospace-windsor-airmotive-division.md) (OpenAirDocs)
- Engine: Pwa
- System (JASC): [7230 · Turbine Engine Compressor Section](https://openairdocs.org/jasc/7230)
- Part: Compressor
- Part number: 54H81601
- Part serial: CENCAL5423
- Condition: Cracked
- Location: Engine
- Part time: 61,928 hours, 12,867 cycles
- Component: H
- Stage of operation: UK
- How discovered: D
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/KC1R20250630155

## Discrepancy

AS RECEIVED, CIRCUMFERENTIAL CRACKING WAS NOTED AROUND THE OUTER DIAMETER OF THE 12TH STAGE, WITH INTERMITTENT PARENT MATERIAL CRACKS ALIGNED PARALLEL IN THE RADIUS ADJACENT TO KNIFE EDGE #12 360 DEGREES. ADDITIONALLY, MULTIPLE CRACKS WERE FOUND IN THE 10TH STAGE ANTI-VORTEX TUBE DISK SHELF AND SUPPORT STRUCTURE.

---
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.