SDR SWIA200312361

Service difficulty report · Sequence Valve · Emb EMB120ER

Difficulty date: August 26, 2003
Submitted: September 5, 2003
Operation: Air carrier
Aircraft: N232SW
Make and model: Emb EMB120ER
Aircraft serial: 120306
Aircraft time: 18,464 hours, 26,641 cycles
System (JASC): 3230 · Landing Gear Retraction/Extension System
Part: Sequence Valve
Condition: Out Of Adjust
Location: Lt Mlg
Stage of operation: AP
How discovered: O
Nature of condition: J
Precautionary procedure: O

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

What was found

UPON SELECTING GEAR DOWN RIGHT MAIN EXTENDED NORMALLY, NOSE GEAR ABOUT 5-10 SECONDS LATER, LEFT MAIN INDICATED RED LIGHTS ONLY THEN NORMAL AFTER 45 SECONDS TO 1 MINUTE, THE GEAR WAS FELT THUD COINCIDING WITH GEAR DOWN INDICATION. ADJUSTED LEFT OUTBOARD SEQUENCE VALVE. OPS CHECKS GOOD.

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