# SDR TSAA20160904020

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 4, 2016
- Submitted: September 8, 2016
- Operation: Air carrier
- Aircraft: [N303KH](https://openairdocs.org/aircraft/N303KH), registered now
- Make and model: Boeing 737-300
- Registry model: [Boeing 737-300](https://openairdocs.org/model/boeing-737-300) (OpenAirDocs)
- Aircraft serial: 25606
- Aircraft time: 39,024 hours, 40,426 cycles
- Engine: Cfmint CFM563C1
- Engine time: 37,356 hours, 38,562 cycles
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: O-Ring
- Condition: Failed
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TSAA20160904020

## Discrepancy

FOD FOUND IN FWD SUMP LUBE UNIT DURING ROUTINE CHECK.  O-RING MATERIAL IN CENTER CHIP DETECTOR AND NUT FOUND STUCK IN FWD SUMP OIL PORT. REMOVED AND REPLACED NR 1 ENGINE. OPS CHECKED GOOD IAW AMM 71-00-02.

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