# SDR 2016FA0000556

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 27, 2016
- Submitted: November 8, 2016
- Operation: General aviation
- Aircraft: [N706LU](https://openairdocs.org/aircraft/N706LU), registered now
- Make and model: Cessna 172S
- Registry model: [Cessna 172S](https://openairdocs.org/model/cessna-172s) (OpenAirDocs)
- Aircraft serial: 172S11472
- Aircraft time: 1,306 hours
- Engine: Lyc IO360L2A
- Engine time: 1,306 hours
- Propeller: Mcauly 1A170E
- System (JASC): [2822 · Fuel Boost Pump](https://openairdocs.org/jasc/2822)
- Part: Washer
- Condition: Detached
- Location: Fuel Pump
- Part time: 1,306 hours
- 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/2016FA0000556

## Discrepancy

DURING A 50 HOUR INSPECTION/OIL CHANGE THE QUICK DRAIN OIL DRAIN BECAME WEDGED OPEN BY DEBRIS/FOD. THE QUICK DRAIN WAS REMOVED AND INSPECTED BY MAINTENANCE PERSONEL AND IT WAS DETERMINED THAT FOD/DEBRIS WAS THE WASHER FROM THE ENGINE DRIVEN FUEL PUMP.  FUEL PUMP WAS REMOVED TO CONFIRM FINDINGS.  WASHER CAME FROM ENGINE DRIVEN FUEL PUMP ACTUATOR ARM TO PLUNGER ROD JOINT.

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