SDR 20021

Service difficulty report · Arm · Swrngn SA227AC

Difficulty date
January 16, 2002
Submitted
January 17, 2002
Operation
Air carrier
Aircraft
N505FS
Make and model
Swrngn SA227AC
Aircraft time
28,330 hours, 39,626 cycles
Part
Arm
Part number
2752000225
Condition
Cracked
Location
Uplock Actuator
Part time
28,330 hours, 39,626 cycles
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

NOSE GEAR OPERATED NORMALLY ON JACKS. WHEN SPRING PRESSURE WAS REMOVED FROM UPLOCK ACTUATOR ARM, A LARGE AMOUNT OF PLAY WAS NOTED IN THE LEFT SIDE CAM AND SHAFT, AND THE ARM COULD BE ROTATED INSIDE THE SHAFT 15 DEGREES EITHER WAY. THE ARM WAS REMOVED FROM THE SHAFT, AND A CRACK RUNNING ALMOST THE FULL CIRCUMFERENCE OF THE ARM WAS FOUND AT THE ARM ATTACHMENT HOLE. THIS CRACK COULD ONLY BE SEEN WITH THE UPLOCK ACTUATOR ARM REMOVED, OR FELT WITH THE SPRING TENSION REMOVED.