Service difficulty report · Uplock Switch · Cessna 680A

Difficulty date
August 9, 2026
Submitted
August 12, 2026
Operation
Air carrier
Aircraft
N639QS
Make and model
Cessna 680A
Aircraft serial
680A0193
Aircraft time
7,620 hours, 4,988 cycles
Part
Uplock Switch
Part number
69481013
Condition
Faulted
Location
Zone 700
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

ON GEAR RETRACTION. WE RECEIVED A AMBER CAS GEAR DISAGREE RT. GEAR BOX INDICATION SHOWED YELLOW BOX, BLACK LETTER -DN- ON RT GEAR. FOLLOW THE QRC, GEAR CAME DOWN WITH A THREE GREEN INDICATION. REMOVED RH UPLOCK SWITCH AND INSTALLED CUSTOMER SUPLIED NEW UPLOCK SWITCH . RIGGING AND OPS CHECKS SATISFATORY IAW AMM 32-32-25

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