# SDR UIEA2014042100153

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 17, 2014
- Submitted: April 21, 2014
- Operation: Air carrier
- Aircraft: [N477MC](https://openairdocs.org/aircraft/N477MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29255
- Aircraft time: 64,147 hours, 11,429 cycles
- System (JASC): [3233 · Landing Gear Actuator](https://openairdocs.org/jasc/3233)
- Part: Actuator
- Part number: 65B8255810
- Part serial: SHL431
- Condition: Leaking
- Location: Lt Blg
- Stage of operation: UK
- 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/UIEA2014042100153

## Discrepancy

LOSS OF HYD SYS NR 1.  QRH PROCEDURES ACCOMPLISHED ON POST FLIGHT, FOUND SOURCE OF HYD LEAK TO BE LT BODY GEAR DOWN LOCK ACTUATOR.  R & R ACTUATOR IAW MM 32-33-15, LEAKS CHECKED OK.

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