# SDR DXTA2023102097380

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 6, 2023
- Submitted: October 20, 2023
- Operation: Air carrier
- Aircraft: [N407QS](https://openairdocs.org/aircraft/N407QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500405
- Aircraft time: 5,326 hours, 4,181 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Uplock
- Part number: 26171000401
- Part serial: 00850
- Condition: Defective
- Location: Unknown
- Stage of operation: LD
- How discovered: C
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2023102097380

## Discrepancy

AFTER TAKEOFF WE SELECTED GEAR UP. THE LEFT MAIN LANDING GEAR DIDN'T FULLY RETRACT (YELLOW CROSSHATCH ICON) THEN AN LG LEVER DISAG RED-CAS MESSAGE POSTED. WE FOLLOWED THE CHECKLIST AND SELECTED THE GEARLEVER DOWN.  ALL WHEELS PROPERLY DEPLOYED AND WE GOT THREE GREEN.  WE LANDED WITHOUT ANY PROBLEMS. //SIGNOFF//REMOVED DEFECTIVE UPLOCK BOX ASSEMBLY PN 2617-1000-401 SN 00850, REMOVE THE UPLOCK SENSOR FROM OLD UPLOCK ASSEMBLY AND INSTALLED IT ON THE REPLACEMENT UPLOCK ASSEMBLY, INSTALLED CUSTOMER SUPPLIED REPAIRED UPLOCK ASSEMBLY PN 2617-1000-401 SN 00041, PERFORMED OPS AND LEAK CHECK, OPS AND LEAK CHECK GOOD IAW PHENOM 300 AMM 32-31-05

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