# SDR O2JA201908140001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 12, 2019
- Submitted: August 14, 2019
- Operation: Air carrier
- Aircraft: [N991AL](https://openairdocs.org/aircraft/N991AL), registered now
- Make and model: Lear 35A
- Registry model: [Lear 35A](https://openairdocs.org/model/gates-learjet-35a) (OpenAirDocs)
- Aircraft serial: 216
- Aircraft time: 1,906 hours, 13,136 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: O-Ring
- Condition: Leaking
- Location: Hyd System
- Stage of operation: NR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/O2JA201908140001

## Discrepancy

LOW HYDRAULIC CAME ON 30 MINUTES OUTSIDE PHX HYDRAULIC PRESSURE DROPPED BELOW 600 PSI. MAINTENANCE TROUBLESHOT HYDRAULIC LEAK TO A LOOSE LINE ON LEFT HAND RETRACT ACTUATOR INSPECTED LINE NO DEFECTS NOTED REPLACED O-RING TIGHTENED RETURN LINES PERFORMED OP'S AND LEAK CHECKS I/A/W LEARJET 35A AMM 32-43-00 NO LEAKS NOTED OP'S CHECKED GOOD. AIRCRAFT RETURNED TO SERVICES

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