# SDR DXTA200300139

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 16, 2003
- Submitted: January 5, 2004
- Operation: Air carrier
- Aircraft: [N939QS](https://openairdocs.org/aircraft/N939QS), registered now
- Make and model: Cessna 750
- Registry model: [Cessna 750](https://openairdocs.org/model/cessna-750) (OpenAirDocs)
- Aircraft serial: 7500193
- Aircraft time: 1,260 hours, 804 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: O-Ring
- Part number: NAS16126
- Condition: Leaking
- Location: Hyd System
- Part time: 1,260 hours, 804 cycles
- Stage of operation: CL
- 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/DXTA200300139

## Discrepancy

LT HYDRAULIC QUANTITY DROPPED TO ZERO 10 MINUTES AFTER TAKE-OFF. (A) SYSTEM UNLOADED, GEAR BLOW DOWN AND EMERGENCY BRAKE SYSTEMS ACTUATED. ACCOMPLISHED AIR TURN BACK TO CMH. - FOUND PLUG O-RING ON HYDRAULIC MANIFOLD LEAKING.  REMOVED AND REPLACED O-RING, LEAK CHECKED GOOD.  BLED HYDRAULIC SYSTEM IAW CE750 MM CHAPTER 12-10-15, SERVICED BOTH HYDRAULIC RESERVOIRS IAW CE750 MM 12-10-15.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.