# SDR 2010FA0000040

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 15, 2010
- Submitted: January 15, 2010
- Operation: General aviation
- Aircraft: N910SF
- Make and model: Doug DC-10-10
- Registry model: [Doug DC-10-10](https://openairdocs.org/model/mcdonnell-douglas-dc-10-10) (OpenAirDocs)
- Aircraft serial: 46524
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Valve
- Part number: 1489951
- Part serial: 331
- Condition: Separated
- Location: Nr 2 Hyd Sys
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2010FA0000040

## Discrepancy

THIS IS TO REPORT A LOSS OF NR 2 HYD SYS "PRESSURE AND QUANTITY" PRIOR TO TAKE-OFF, ACFT RETURNED TO GATE.  INVESTIGATION FOUND VALVE ASY (M1-164) FOR THE 2-1 NON-REVERSIBLE MOTOR PUMP TO BE AT FAULT.  REF IPC 29-12-59, FIG 1, PG 9, ITEM 340, PN 148995-1, SN 331.  THE VALVE SEPARATED AT THE UNION POINT OF THE MOTOR AND VALVE RESULTING IN COMPLETE LOSS OF FLUID IN NR 2 HYD SYS.  THE DISCREPANT VALVE HAS BEEN SENT FOR FAILURE ANALYSIS.

---
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.