# SDR TWAA9805301

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 7, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N922L](https://openairdocs.org/aircraft/N922L), registered now
- Make and model: Doug DC-9-32
- Registry model: [Doug DC-9-32](https://openairdocs.org/model/mcdonnell-douglas-dc-9-32) (OpenAirDocs)
- Aircraft serial: 47108
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Part number: 314195
- Condition: Failed
- Location: Lt Engine
- Stage of operation: CR
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TWAA9805301

## Discrepancy

STL - FLT 599 - DURING CRUISE, THE LEFT HYDRAULIC LOW PRESSURE LIGHT ILLUMINATED.  THE SYSTEM PRESSURE FLUCTUATED BETWEEN 1800 - 2800 PSI REGARDLESS OF PUMP SELECTION, HI-LOW-OFF.  REPLACED THE LEFT ENGINE DRIVEN HYDRAULIC PUMP MFG PN 314195.  OP-15 11-15-97 MCI.  (X)

---
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.