# SDR 9JLA2021030928053

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 8, 2021
- Submitted: March 9, 2021
- Operation: Air carrier
- Aircraft: [N821DF](https://openairdocs.org/aircraft/N821DF), registered now
- Make and model: Lear 60LEAR
- Aircraft serial: 60042
- Aircraft time: 7,896 hours, 5,805 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Line
- Part number: 5407002340
- Condition: Leaking
- Location: Hyd System
- Stage of operation: IN
- How discovered: V
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9JLA2021030928053

## Discrepancy

THE MAINTENANCE TEAM DISCOVERED DURING POST FLIGHT CHECKS AN HYDRAULIC LEAK COMING FROM THE MAIN LANDING GEAR WHEEL WELL AREA. TROUBLESHOOTING DETERMINED THE RIGHT MAIN LANDING GEAR DOOR HYDRAULIC LINE LEAKING (P/N 5407002-340) A NEW HYDRAULIC LINE WAS INSTALLED. FUNCTIONAL AND LEAK CHECKS WERE SATISFACTORY. THE AIRCRAFT WAS RETURNED TO SERVICE.

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