Service difficulty report · Downlock Switch · Cessna 560XL

Difficulty date
January 21, 2011
Submitted
January 24, 2011
Operation
Air carrier
Aircraft
N590QS
Make and model
Cessna 560XL
Aircraft serial
5605738
Aircraft time
2,739 hours, 2,095 cycles
Part
Downlock Switch
Part number
15500301
Part serial
0716
Condition
Damaged
Location
Rt Mlg
Stage of operation
DE
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

DECENDING THROUGH FL200, THE LOW BRAKE PRESSURE AND ANTISKID INOP ANNUNCIATION BEGAN TO FLICKER THEN AFTER 3 MIN BECAME SOLID. THE GEAR WAS THEN EXTENDED AND THE LIGHTS EXTINGUISHED. UPON GEAR RETRACTION, THE RT MAIN GREEN GEAR DOWN LIGHT FAILED TO EXTINGUISH. CREW THEN COMPLEATED THE EMERGENCY BLOW DOWN PROCEDURE AS A PRECAUTION. LANDING WAS NORMAL AND BRAKES WORKED NORMALLY. R & R RT DOWNLOCK ACTUATOR SWITCH WITH NEW IAW MM 32-30-04. OPS CHECKED NORMAL.

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