# SDR UIEA2020031300429

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 10, 2020
- Submitted: March 13, 2020
- Operation: Air carrier
- Aircraft: [N405KZ](https://openairdocs.org/aircraft/N405KZ), registered now
- Make and model: Boeing 747-4KZF
- Registry model: [Boeing 747-4KZF](https://openairdocs.org/model/boeing-747-4kzf) (OpenAirDocs)
- Aircraft serial: 36132
- Aircraft time: 42,137 hours, 8,602 cycles
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Pseu
- Part number: 856920
- Part serial: S843
- Condition: Malfunctioned
- Location: Landing Gear
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2020031300429

## Discrepancy

LANDING GEAR TILT/DOOR MESSAGE ON CLIMB OUT. CREW CONTINUED FLIGHT WITH GEAR DOWN FROM KKJ TO NRT.(<P ><SPAN>LANDING GEAR PROX SENSORS CONDITION CHECK OK. REMOVED AND REPLACED PSEU AND DAMAGED / HYD LINE ON LH BLG TILT ACTUATOR. THEN PSEU SYSTEM GROUND TEST PASSED. NO CMC FAULT MSG. NO EICAS MSG, IAW AMM TASK 32-09-03-404-0058 TASK 32-09-03-745-019.</SPAN></P>)

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