# SDR CA001012012

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 21, 2000
- Submitted: January 22, 2001
- Operation: General aviation
- Make and model: Skrsky S61N
- Aircraft time: 21,418 hours
- Engine: Ge CT581401
- System (JASC): [6310 · Engine/Transmission Coupling](https://openairdocs.org/jasc/6310)
- Part: O-Ring
- Condition: Leaking
- Location: Input Coupling
- Stage of operation: IN
- How discovered: V
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA001012012

## Discrepancy

(CAN) WE HAVE HAD 5 CASES OF UNACCEPTABLE GREASE LEAKAGE RATES FROM THE INPUT COUPLINGS.WHEN THE COUPLINGS WERE DISASSEMBLED THE O-RING P/N M83248-1-132 WAS FOUND TO BE EITHER FLAT OR DETERIORATED. ACRO (LANGLEY) TOLD ME THAT THEY DID A HARDNESS TEST ON THEIR BATCH OF O-RINGS AND FOUND THAT THEY FAILED. ATTACHED TO THIS REPORT YOU WIL FIND A COPY OF THE LOT NUMBER OF THE O-RINGS IN QUESTION.

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