Service difficulty report · Attach Fitting · Emb ERJ190100IGW

Difficulty date
September 13, 2009
Submitted
October 23, 2009
Operation
General aviation
Make and model
Emb ERJ190100IGW
Aircraft time
6,846 hours
Engine
Ge CF3410E5A1
Part
Attach Fitting
Part number
2822A000003
Condition
Failed
Location
Retract Actuator
Stage of operation
IN
How discovered
9
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

(CAN) AFTER REMOVING THE LANDING GEAR IN ORDER TO REPLACE THE FWD SPAR PINTLE PIN BEARING, CORROSION/PITTING WAS FOUND ON THE BORE FACE WHERE THE RETRACT ACTUATOR ATTACHES TO THE MLG SHOCK STRUT. WHEN THE PIN WAS REMOVED FROM THE RETRACT ACTUATOR LUG, WHITE POWDER WAS FOUND WHERE THE HEAD OF THE PIN CONTACTS THE FACE OF THE BORE. THE CORROSION/PITTING WAS FOUND ON THE BORE FACE WHICH GOES ROUGHLY 120 DEGREES AROUND AS WELL AS ON THE RETRACT ACTUATOR LUG PIN. CORROSION WAS ALSO FOUND ON THE CHAMFER BETWEEN THE BUSH AND BORE FACE. THE CORROSION ON THE CHAMFER SEEMS TO BE LESS SEVERE THAN THE CORROSION ON THE BORE FACE BUT STILL CONTAINS PITTING AND GOES RIGHT TO THE EDGE OF THE BUSHING INSTALLED. THE BUSHING LOCATED WITHIN THE BORE IN QUESTION WAS FOUND TO HAVE THE SEALANT FULLY INTACT ON THE FLANGED SIDE. (TC 20090916002)

More about the Emb ERJ 190-100 IGW