# SDR 97ZZZX1964

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 1, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Engine: Garrtt TPE3316252B
- System (JASC): [7250 · Turbine Section](https://openairdocs.org/jasc/7250)
- Part: Support Assy
- Part number: 8965841
- Condition: Misoverhauled
- Location: Stg 1 Turbine
- Stage of operation: IN
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97ZZZX1964

## Discrepancy

AFTER INSTALLATION OF SUPPORT ASSY, ENGINE MADE CHATTERING NOISE WHEN ROTATED.  DISASSEMBLY SHOWED IMPROPER MACHINING OF SUPPORT ALLOWING SEGMENTS TO CONTACT TURBINE WHEEL BLADES.  CAUSE:  IMPROPER REPAIR.  SUBMITTER SUGGESTS BETTER QUALITY CONTROL DURING REPAIR.

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