# SDR CHIR020165022375

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 2, 2016
- Submitted: May 2, 2016
- Operation: General aviation
- Make and model: Boeing 234
- Registry model: [Boeing 234](https://openairdocs.org/model/boeing-vertol-234) (OpenAirDocs)
- Aircraft serial: MJ003
- Aircraft time: 25,818 hours
- Engine: Lyc AL5512
- Engine time: 16,787 hours
- System (JASC): [7230 · Turbine Engine Compressor Section](https://openairdocs.org/jasc/7230)
- Part: Case
- Part number: 2101700R18
- Part serial: 175
- Condition: Debonded
- Location: Compressor
- 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/CHIR020165022375

## Discrepancy

(P2-CH) NR 2 ENGINE CHIP LIGHT, CONFIRMED METAL CONTAMINATION ON CHIP PLUG AND OIL FILTER.  AFTER RECEIPT AT REPAIR STATION, DIFFUSER AND GP AREA INSPECTED PRIOR TO PRELIMINARY TEST CELL RUN WITHOUT ANY EVIDENCE OF DELAMINATION.  POST TEST, DURING ROUTINE REPAIR DISASSEMBLY EVIDENCE OF PLASMA REDISTRIBUTION WAS FOUND AT THE AIR DIFFUSER. TOP COMPRESSOR CASE WAS REMOVED AND SUSPICION OF COMPRESSOR IMPELLER, LAND PLASMA REPAIR DELAMINATION WERE CONFIRMED.

---
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.