Service difficulty report · Actuator · Cessna 680CE

Difficulty date
January 9, 2020
Submitted
January 15, 2020
Operation
Air carrier
Aircraft
N308QS
Make and model
Cessna 680CE
Aircraft serial
6800116
Aircraft time
10,750 hours, 7,276 cycles
Part
Actuator
Part number
99146842
Part serial
0291
Condition
Malfunctioned
Location
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

RIGHT MLG LANDING GEAR RETRACTION DID NOT RETRACT - RIGHT MAIN DID NOT RETRACT. THE NOSE AND LEFT MAIN RETRACTED NORMALLY. THE RED UNLOCK LIGHT WENT OUT WITH THE RIGHT MAIN DOWN AND LOCKED GREEN LIGHT ON. THE RIGHT MAIN NEVER UNLOCKED AND RETRACTED. DISCONNECTED AND RANG OUT UPLOCK SWITCH SG008 AND CONNECTOR PG002. SWITCH RINGS GOOD. CONNECTED SQUAT SWITCH SIMULATORS TO NOSE, LEFT, AND RIGHT LANDING GEARS AND SWITCHED TO IN AIR. ALL GEAR INDICATORS SHOW UNLOCKED AND IN AIR. DISCONNECTED SQUAT SWITCH SIMULATORS AND RECONNECTED NOSE, LEFT, AND RIGHT LANDING GEAR CONNECTORS. USING CDMC DIAGNOSTICS PAGE, VERIFIED ALL UPLOCK SWITCHES SHOW UP AND LOCKED WHEN ACTUATED. NEED TO JACK AIRCRAFT FOR FURTHER TROUBLESHOOTING. WORKED IAW WDM 32-30-01-FIG 2 (REV 8) JACKED AIRCRAFT. CONNECTED HYDRAULIC AND ELECTRICAL POWER. OPERATED LANDING GEAR. FOUND THE RIGHT GEAR DOWN/LOCKED INDICATION (GREEN LIGHT) IN THE COCKPIT WILL INTERMITTENTLY STAY ILLUMINATED WHILE THE GEAR IS IN TRANSIT. TROUBLESHOT TO AN INTERMITTENT DOWN/LOCKED SWITCH. INSTALLED MLG ACTUATOR LB WING ATTACH BOLT. COMPLIED WITH ALL OPERATIONAL AND LEAKS CHECKS AS REQUIRED, ALL CHECK SATISFACTORY, IAW MM 32-30-40. ALL GEAR POSITION INDICATIONS NORMAL.