# SDR NI1R552PC030623

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 6, 2023
- Submitted: March 10, 2023
- Operation: General aviation
- Aircraft: [N552PC](https://openairdocs.org/aircraft/N552PC), registered now
- Make and model: Piper PA-44-180
- Registry model: [Piper PA-44-180](https://openairdocs.org/model/piper-pa-44-180) (OpenAirDocs)
- Aircraft serial: 4496069
- Aircraft time: 5,195 hours
- Engine: Lyc O360A1H6
- Engine time: 5,872 hours
- System (JASC): [7311 · Engine Fuel/Oil Cooler](https://openairdocs.org/jasc/7311)
- Part: Oil Cooler
- Part number: 20003A
- Part serial: 1141185654
- Condition: Cracked
- Location: Bottom Of Oil Co
- Part time: 120 hours
- Component: Engine, Lyc, O360A1H6
- Stage of operation: CR
- How discovered: C
- Nature of condition: K
- Precautionary procedure: E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/NI1R552PC030623

## Discrepancy

DURING A DUAL TRAINING FLIGHT THE PILOT NOTICE THE OIL PRESSURE DROPPING AND THE OIL TEMP CLIMBING. A PRECAUTIONARY ENGINE SHUTDOWN WAS PERFORMED, AND THE AIRCRAFT RETURNED TO THE AIRPORT. THE INVESTIGATION REVEALED THE L/H OIL COOLER HAD CRACKED ALONG THE BOTTOM SEAM. TOTAL TIME SINCE NEW ON THE OIL COOLER WAS 119.9 HRS.

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