# SDR FDEA202202250369

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 25, 2022
- Submitted: February 25, 2022
- Operation: Air carrier
- Aircraft: [N948FD](https://openairdocs.org/aircraft/N948FD), registered now
- Make and model: Boeing 757-200 SERIES
- Registry model: [Boeing 757-200 SERIES](https://openairdocs.org/model/boeing-757-200-series) (OpenAirDocs)
- Aircraft serial: 25059
- Aircraft time: 42,955 hours, 35,671 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Pump
- Part number: 3508806
- Part serial: MX406133
- Condition: None
- Location: Zone 500
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA202202250369

## Discrepancy

JUST LEVELED IN CRUISE FLIGHT WHEN EICAS CAUTION -  L HYD SYS PRESS AND RUDDER RATIO.  COMPLIED WITH QRH CONTINUED TO MEM DECLARED  EMERGENCY AND LANDED IN MEM.     FACT 24FEB22 21:21   MEM U  SUSPECT THE LH ENGINE DRIVEN PUMP SHAFT SHEARED.  REMOVED THE LH ENGINE DRIVEN HYDRAULIC PUMP P/N  350880-6 S/N MX406133 AND REPLACED WITH ENGINE  DRIVEN PUMP P/N 350880-6 S/N MX-517000, REFERENCE  THE B757 AMM 29-11-05-4-1.  REMOVED AND REPLACED  THE LH ENGINE DRIVEN PUMP PRESSURE AND CASE DRAIN  FILTERS (NOTE: NO DEBRIS OR CONTAMINATION FOUND  DURING FILTER CHANGE.) REFERENCE THE B757 AMM  29-11-17-4. RAN THE LH ENGINE REFERENCE THE JRH,  OPERATIONAL AND LEAK CHECK GOOD. A/C OK FOR  SERVICE.

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