Service difficulty report · Counterbalance · Boeing 7377H4

Difficulty date
August 29, 2017
Submitted
May 11, 2022
Operation
Air carrier
Aircraft
N489WN
Make and model
Boeing 7377H4
Aircraft serial
33855
Aircraft time
45,979 hours, 26,932 cycles
Part
Counterbalance
Condition
Corroded
Location
Rudder
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

UPON REMOVAL OF COUNTER BALANCE WEIGHT CORROSION FOUND ON THE FWD RIGH HAND FACE OF BALANCE ARM. CORROSIONG IS .045' DEEP (TRANSFERRED FROM NRC# 483092) / BLENDED AND REMOVED CORROSION PER SRM 51-40-02; REPAIRED RUDDER BALANCE ARM PER EA 1-755-3798; SEE ATTACHED 326 FOR INDIVIDUAL SIGN OFFS

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