SDR SWIA200311931

Service difficulty report · Sequence Valve · Emb EMB120ER

Difficulty date: April 29, 2003
Submitted: May 7, 2003
Operation: Air carrier
Aircraft: N250YV
Make and model: Emb EMB120ER
Aircraft serial: 120250
Aircraft time: 23,234 hours, 33,045 cycles
Engine: Pwa PW118A
System (JASC): 3230 · Landing Gear Retraction/Extension System
Part: Sequence Valve
Condition: Malfunctioned
Location: Rt Mlg
Stage of operation: AP
How discovered: O
Nature of condition: F, J
Precautionary procedure: O

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

What was found

GEAR RETRACTION NORMAL. IN FLIGHT THE B-DISAGREEMENT LIGHTS ILLUMINATED FOR ABOUT 15 SECONDS. UPON GEAR EXTENSION, THE LEFT AND NOSE GEAR EXTENDED NORMALLY, THE RIGHT GEAR REQUIRED ABOUT 7 SECONDS BEFORE THE DISAGREEMENT LIGHT EXTINGUISHED. REPLACED RIGHT MAIN GEAR INBOARD DOOR SEQUENCE VALVE. OPS CHECK, LEAK CHECK GOOD, GEAR SWING GOOD.

More about the Emb EMB-120ER