Service difficulty report · Proximity Switch · Emb EMB120ER

Difficulty date
November 14, 2001
Submitted
November 21, 2001
Operation
Air carrier
Aircraft
N294SW
Make and model
Emb EMB120ER
Aircraft serial
120325
Aircraft time
13,107 hours, 18,673 cycles
Engine
Pwa PW118B
Part
Proximity Switch
Condition
Malfunctioned
Location
Rt Mlg
Stage of operation
CL
How discovered
O
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

VIBRATION AND NOISE DURING ROTATION AT TAKEOFF, THEN RIGHT SYSTEM B-GREEN GEAR LIGHT WOULD NOT EXTINGUISH WITH GEAR HANDLE IN UP POSITION. CHECKED GEAR DOOR AND LINKAGE AT RIGHT MAIN GEAR AND FOUND GOOD. CYCLED GEAR FOUND B-SYSTEM PROXIMITY SENSOR BAD. DEFERRED RIGHT GEAR B-SYSTEM INDICATION PER MEL 32-60-1C. TROUBLESHOT RT MAIN (B) INDICATION INTERMITTENT, FOUND THE FOLLOWING; PROXIMITY SENSOR CAPS WITHIN LIMITS, HARNESS INTEGRITY GOOD, PROXIMITY SENSOR ALIGNMENT GOOD, CLEANED CANNON PLUGS. OPS CHECK GOOD.

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