# SDR 2014FA0000459

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 5, 2014
- Submitted: August 5, 2014
- Operation: General aviation
- Filed by: [Learjet Inc, repair station LN4R342M](https://openairdocs.org/faa-repair-station/LN4R342M/learjet-inc.md) (OpenAirDocs)
- Aircraft: [N337FX](https://openairdocs.org/aircraft/N337FX), registered now
- Make and model: Cndair CL6002B16
- Aircraft serial: 5647
- Aircraft time: 7,453 hours, 4,019 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Line
- Part number: 6047523833
- Condition: Chafed
- Location: Hydraulic Sys
- Part time: 7,453 hours, 4,019 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2014FA0000459

## Discrepancy

THE ACFT EXPERIENCED A HIGH TEMP NR 1 HYDRAULIC SYSTEM LEADING TO A LOSS OF HYDRAULIC FLUID RESULTING IN A DECLARED EMERGENCY LANDING.  AFTER INVESTIGATING THE CAUSE OF THE FLUID LOSS WE DISCOVERED THE NR 1 HYDRAULIC SYSTEM PRESSURE LINE, PN 604-75238-3 WAS CHAFED THROUGH RESULTING IN LOSS OF PRESSURE.  THE PRESSURE LINE CLAMP WAS MISSING THE RUBBER ANTI-CHAFE RUBBER.  ADDITIONALLY SINCE THE ENGINE DRIVEN PUMP WAS OPERATED AT A HIGH TEMPERATURE AND EXCEEDING THE MM REQUIREMENTS THE LT ENGINE DRIVEN HYDRAULIC PUMP WAS CHANGED.

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