Service difficulty report · Squat Switch · Beech 1900C

Difficulty date
March 29, 2016
Submitted
March 30, 2016
Operation
Air carrier
Aircraft
N346AF
Make and model
Beech 1900C
Aircraft serial
UC71
Aircraft time
39,520 hours, 39,095 cycles
Part
Squat Switch
Part number
444EN496
Condition
Shorted
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

DURING CLIMB OUT, THE PILOT REPORTED THAT DURING THE LG RETRACTION THE RED IN TRANSIT LIGHT REMAINED ILLUMINATED & THE LG WOULD NOT FULLY RETRACT. THE PILOT ATTEMPTED TO EXTEND THE LG & THE LG WOULD NOT EXTEND NORMALLY. THE PILOT EXTENDED THE LG USING THE EMER EXTENSION SYS & RECEIVED A SAFE DOWN & LOCKED INDICATION. RETURNED & LANDED WITHOUT INCIDENT. TROUBLE SHOT THE LG SYS & FOUND THE RT MLG WEIGHT ON WHEELS SQUAT, SWITCH PN 444EN49-6, INTERNALLY SHORTED CAUSING THE LG GEAR CONTROL CB TO TRIP. THE RT MLG WEIGHT ON WHEELS SWITCH WAS REPLACED & LG SWINGS COMPLETED ON JACKS. THE LG SYS FUNCTIONAL CHECKED NORMAL.

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