# SDR 96ZZZX2753

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 28, 1995
- Submitted: March 26, 2000
- Operation: General aviation
- Filed by: [National Flight Services Inc, repair station DSCR311D](https://openairdocs.org/faa-repair-station/DSCR311D/national-flight-services-inc.md) (OpenAirDocs)
- Engine: Garrtt TPE331*
- System (JASC): [7250 · Turbine Section](https://openairdocs.org/jasc/7250)
- Part: Seal
- Part number: 31038391
- Condition: Cracked
- Location: 1st Stg Turb
- Part time: 10,385 hours
- Component: 31033152
- 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/96ZZZX2753

## Discrepancy

DURING SCHEDULED HOT SECTION INSPECTION, FOUND PART CRACKED AT FLANGE APPROXIMATELY 19 PLACES.  SUGGEST ALLIED SIGNAL ENGINEERING REVIEW PROBLEM.  THIS IS A CRITICAL LIFE-LIMITED COMPONENT.  LIFE-LIMIT - 20,000 CYCLES.  THIS IS THE 16TH ROTATING AIR SEAL FOUND CRACKED AND 16TH M OR D REPORT FILED ON THIS PART.  TOTAL CYCLES, 10,734.

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