# SDR DXTA2023070690370

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 5, 2023
- Submitted: July 6, 2023
- Operation: Air carrier
- Aircraft: [N678QS](https://openairdocs.org/aircraft/N678QS), registered now
- Make and model: Cessna 560XL
- Registry model: [Cessna 560XL](https://openairdocs.org/model/cessna-560xl) (OpenAirDocs)
- Aircraft serial: 5605616
- Aircraft time: 15,209 hours, 11,595 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Handle
- Part number: 99125501
- Part serial: J6669
- Condition: Defective
- Location: Zone 700
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2023070690370

## Discrepancy

LEFT MLG LANDING GEAR RETRACTION: AFTER TAKEOFF, SELECTED GEAR HANDLE UP. THE GEAR REMANDED DOWN AND LOCKED, 3 GREEN INDICATION. USED THE CESSNA CHECKLIST: LANDING GEAR DOWN ANNUNCIATOR DISPLAYS WITH GEAR RETRACTED. PER THE CHECKLIST: EMERGENCY GEAR EXTENSION WAS USED.  REMOVED MLG CONTROL HANDLE ASSY & REPLACED WITH NEW MLG CONTROL HANDLE ASSY IAW TROUBLESHOOTING GUIDE IAW AMM 32-30-00.  REMOVED SOL OPEN LOADING BYPASS VALVE FROM MAIN HYD MANIFOLD & INSTALLED AN OVERHAULED SOL OPEN LOADING BYPASS VALVE IAW AMM 29-11-06.  OPS CHECKED GOOD.  ALL WORK COMPLETED IAW AMM 29-11-06 & 32-30-00.

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