SDR SWIA201232361

Service difficulty report · Sequence Valve · Emb EMB120ER

Difficulty date: December 12, 2012
Submitted: December 19, 2012
Operation: Air carrier
Aircraft: N563SW
Make and model: Emb EMB120ER
Aircraft serial: 120338
Aircraft time: 31,271 hours, 43,876 cycles
System (JASC): 3230 · Landing Gear Retraction/Extension System
Part: Sequence Valve
Condition: Dirty
Location: Rt Mlg
Stage of operation: CL
How discovered: O
Nature of condition: J
Precautionary procedure: K

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

What was found

AFTER TAKEOFF RIGHT MAIN GEAR DID NOT RETRACT, CYCLED GEAR ONCE, AFTER APPROXIMATELY 5-6 SECORDS AFTER RAISING THE LEVER THE GEAR RETRACTED. (FLT 5648) CLEANED RIGHT MLG I/B AND O/B SEQUENCE VALVE PLUNGERS AND ADJUSTED O/B SEQUENCE VALVE PLUNGER AS REQUIRED.

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