Service difficulty report · Uplock Switch · Cessna 680A

Difficulty date
April 17, 2020
Submitted
April 20, 2020
Operation
Air carrier
Aircraft
N620QS
Make and model
Cessna 680A
Aircraft serial
680A0162
Aircraft time
1,522 hours, 988 cycles
Part
Uplock Switch
Part number
69481013
Condition
Defective
Location
Rt Mlg
Stage of operation
LD
How discovered
O
Nature of condition
N
Precautionary procedure
L

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

What was found

GEAR DISAGREE R AMBER CAS ILLUMINATED - DURING GEAR EXTENSION RIGHT GEAR LIGHT SHOWED DISAGREEMENT. RAN CHECKLIST AND BLEW GEAR DOWN PER CHECKLIST. GEAR INDICATED 3 GREEN// SIGNOFF // DOWNLOADED ARES (DATES 04-17-2020) AND SENT TO TEXTRON AVIATION, MANUALLY: RESET THE CONTROL ARM ON THE EMERGENCY: GEAR EXTENSION PNEUMATIC BOTTLE AND SAFETIED IT (NOSE). RESET/OUSHED THE PNEUMATIC OVERRIDE VALVE ON LANDING GEAR CONTROL MANIFOLD (PANEL NO.316AR).SERVICED EMERAENCV GEAR EXTENSION PNEUMATIC BOTTLE AS RENUIRED. JACKED UP AIRCRAFT AND HOOKED EXTERNAL HVDRAULIC CART. PERFORMED LANDINA GEAR OPERATIONAL CHECK AND CYCLED LANDINQ QEAR 15 TIMES. ALLOWED AIRCRAFT TO SIT FOR 15 MINS THEN PROCEEDED TO PERFORM ANOTHER 7 CYCLES NO CAS MESSAGES OR WARNINAS CLISPLAYED. CYCLED AND MOVED ALL CONTROL SURFACES TO BLEED AIRCRAFT HYDRAULIC SVSTEM. SERVICED HYDRAULIC SYSTEM AS REQUIRED. ( AP 04-18-2020) REMOVED AND REPLACED R/H MAIN GEAR UPLOCK SWITCH JAW CE-680A AMM REF 32-32-25. JACKED UP AIRCRAFT AND PERFORMED OPS CHECK NUMEROUS TIMES, OPS CHECK GOOD. LOWERED AIRCRAFT, REMOVED JACKS AND PUT AIRCRAFT TO ITS ORIGINAL CONFIGURATION.

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