Service difficulty report · Actuator · Lear 45LEAR

Difficulty date
March 10, 2008
Submitted
March 13, 2008
Operation
General aviation
Aircraft
N828CA
Make and model
Lear 45LEAR
Aircraft serial
159
Aircraft time
3,175 hours, 2,197 cycles
Engine
Pwa JT12A8
Part
Actuator
Part number
2000300003
Part serial
H0203
Condition
Bypassing
Location
Lt Mlg
Part time
3,137 hours, 2,197 cycles
Stage of operation
CL
How discovered
O
Nature of condition
S
Precautionary procedure
O

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

What was found

LT MLG ACTUATOR BYPASSING ON RETRACTION CAUSING INTERFERENCE WITH IB DOOR ROLLERS. NO EXTERNAL FAILURE INDICATION. UPON TEARDOWN, IT WAS DISCOVERED THAT THE CYLINDER WAS SCRATCHED AND THE PISTON SEAL WAS DAMAGED.