# SDR DALA2021011400238

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 22, 2020
- Submitted: January 14, 2021
- Operation: Air carrier
- Aircraft: [N588NW](https://openairdocs.org/aircraft/N588NW), registered now
- Make and model: Boeing 757351
- Aircraft serial: 32988
- Aircraft time: 62,377 hours, 20,259 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Actuator
- Condition: Failed
- Location: Lg Mlg Downlock
- Stage of operation: CL
- 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/DALA2021011400238

## Discrepancy

SHIP 5808 - THE FLIGHT CREW DECLARED AN EMERGENCY DUE TO A "L HYD QTY" EICAS MESSAGE AND A "RSVR" WARNING LIGHT. HYDRAULIC QUANTITY WAS SHOWING "ZERO" AS IN A TOTAL LOSS OF L HYDRAULIC SYSTEM AND RESERVOIR. CORRECTIVE ACTION: MAINTENANCE REPLACED THE LEFT MAIN GEAR DOWN LOCK ACTUATOR.

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