# SDR 2023F00091

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 28, 2023
- Submitted: March 28, 2023
- Operation: General aviation
- System (JASC): [7250 · Turbine Section](https://openairdocs.org/jasc/7250)
- Part: Unknown
- Condition: Unknown
- Location: Unknown
- Component: Lpt Seal Stage, Cfmint
- Component part number: 3381117010
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2023F00091

## Discrepancy

AN ERROR HAS BEEN DETECTED ON A HEAT TREATMENT CYCLE DURING THE REPAIR OF A LPT SEAL STAGE 3 CFM56 (SN DD020283 / DA210352)
PARTS IN THE PROCESS OF REPAIR HAVE BEEN SECURED.
AFTER INVESTIGATION, CRMA HAS ONLY DELIVERED TWO PARTS WITH THE SAME ERROR TO OUR US CUSTOMER INAV.
INFORMATION ABOUT A POTENTIEL SAFETY ISSUE HAS BEEN TRANSMITTED TO THE CUSTOMER.
WE ARE WAITING INSTRUCTIONS FROM THE OEM CFMI.

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