# SDR 99ZZZX256

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 10, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N225JL](https://openairdocs.org/aircraft/N225JL), registered now
- Make and model: Lear 25B
- Registry model: [Lear 25B](https://openairdocs.org/model/gates-lear-jet-25b) (OpenAirDocs)
- Aircraft serial: 182
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Hose
- Part number: 240600514
- Condition: Leaking
- Location: Rt Engine
- Part time: 1,600 hours
- Stage of operation: CR
- Nature of condition: K, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX256

## Discrepancy

AT CRUISE, PILOTS EXPERIENCED A LOSS OF HYDRAULIC PRESSURE.  AN UNEVENTFUL LANDING WAS MADE USING EMERGENCY SYSTEMS TO EXTEND LANDING GEAR.  MAINTENANCE FOUND A SMALL HOLE IN ENGINE DRIVEN PUMP PRESSURE LINE (RIGHT) AND A CRACKED FLARE ON THE EMERGENCY HYDRAULIC PUMP PRESSURE LINE.  THIS IS A HARD LINE, P/N 2307023-484, WITH 7,605 HOURS TT.  THE HARD LINE POSSIBLY CRACKED DUE TO AGE.  NO IDEA WHY THE FLEX LINE ON THE ENGINE FAILED.  FLEX LINE INSTALLED 1-95.

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