# SDR 98ZZZX1273

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 9, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N105HH](https://openairdocs.org/aircraft/N105HH), registered now
- Make and model: Bolkms BO105S
- Aircraft serial: S339
- Engine: Allsn 250C20B
- System (JASC): [7230 · Turbine Engine Compressor Section](https://openairdocs.org/jasc/7230)
- Part: Wheel Blade
- Part number: 6876655
- Condition: Missing
- Location: Compressor Nr 5
- 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/98ZZZX1273

## Discrepancy

UPON COMPRESSOR DISASSEMBLY FOR OVERHAUL, FOUND ONE BLADE MISSING FROM 5TH STAGE COMPRESSOR WHEEL.  BLADE APPEARS TO HAVE EXITED THROUGH BLEED VALVE AS NO DOWNSTREAM DAMAGE OCCURRED.  NO IN-SERVICE DIFFICULTY WAS REPORTED.  THE COMPRESSOR WHEEL EXHIBITS EVIDENCE OF A CORROSION PIT HALF WAY THROUGH CHORD OF BLADE AT BREAK POINT.

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