SDR SCNA20240506231

Service difficulty report · Selector Valve · Boeing 7378BK

Difficulty date: April 3, 2024
Submitted: May 6, 2024
Operation: Air carrier
Aircraft: N822SY
Make and model: Boeing 7378BK
Aircraft serial: 33017
Aircraft time: 26,678 hours, 59,202 cycles
System (JASC): 3230 · Landing Gear Retraction/Extension System
Part: Selector Valve
Part number: UNKNOWN
Condition: Faulted
Location: Mlg
Stage of operation: CL
How discovered: 9
Nature of condition: J
Precautionary procedure: A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

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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