# SDR SCNA20240506231

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 3, 2024
- Submitted: May 6, 2024
- Operation: Air carrier
- Aircraft: [N822SY](https://openairdocs.org/aircraft/N822SY), registered now
- Make and model: Boeing 737-8BK
- Registry model: [Boeing 737-8BK](https://openairdocs.org/model/boeing-737-8bk) (OpenAirDocs)
- Aircraft serial: 33017
- Aircraft time: 26,678 hours, 59,202 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Selector Valve
- Part number: UNKNOWN
- Condition: Faulted
- Location: Mlg
- Stage of operation: CL
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SCNA20240506231

## Discrepancy

ON TAKE OFF GEAR FAILED TO RETRACT. 3 RED 3 GREEN RAN QRH GOT 3 GREEN NO RED AND LANDED. NO PINS FOUND INSTALLED AFTER LANDING. JCD 9056. TROUBLESHOT TO LANDING GEAR SELECTOR VALVE AND LANDING GEAR TRANSFER VALVE. ALL REMOVED AND REPLACED IAW B737 AMM 32-31-51, 32-31-71, AND 32-32-00. ALL ON ATS WO 729012 N/R-00001.

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