# SDR CA050324004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 23, 2005
- Submitted: May 2, 2005
- Operation: General aviation
- Make and model: Lear 35LEAR
- Aircraft time: 20,042 hours
- Engine: Garrtt TFE73122B
- System (JASC): [7921 · Engine Oil Cooler](https://openairdocs.org/jasc/7921)
- Part: Tube
- Part number: 9919330726361
- Condition: Chafed
- Location: Oil Cooler
- Stage of operation: IN
- How discovered: V
- Nature of condition: E
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA050324004

## Discrepancy

(CAN) AFTER CREW REPORTED A LOW OIL PRESSURE ON LT ENGINE. THE MAINTENANCE PERSONNEL FOUND AFTER INVESTIGATION THAT THE OIL COOLER TUBE ASSEMBLY WAS PUNCTURED/CHAFED.  ONE OF THE HOLDING CLAMP`S PROTECTIVE MATERIAL WAS COMPLETELY CHAFED (INSIDE PORTION) AND WITH TIME, CHAFED THROUGH THE TUBE. THE TUBE ASSEMBLY WAS REPLACED AND AIRCRAFT WAS RETURNED TO SERVICE.

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