# SDR 97ZZZX4216

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 31, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N920DY
- Make and model: Rkwell NA26565
- Aircraft serial: 46550
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Compressor
- Condition: Blade Failed
- Location: Apu
- Part time: 296 hours
- Component: Sundstrandem, T62T404
- 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/97ZZZX4216

## Discrepancy

PILOTS REPORTED THE APU WAS MAKING A HIGH PITCHED UNUSUAL NOISE.  INSPECTION REVEALED A PIECE OF ONE COMPRESSOR BLADE HAD BROKEN AND STRUCK SEVERAL OTHER BLADES.  NO OTHER DAMAGE NOTED AT THIS TIME.  APU IS BEING SENT TO A REPAIR FACILITY FOR FURTHER EVALUATION.  CYCLES, 1,146.

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