Service difficulty report · Balance Weight · Boeing 7377H4

Difficulty date
June 30, 2023
Submitted
August 14, 2023
Operation
Air carrier
Aircraft
N446WN
Make and model
Boeing 7377H4
Aircraft serial
29842
Aircraft time
63,737 hours, 37,813 cycles
Part
Balance Weight
Part number
UNKNOWN
Condition
Corroded
Location
Zn 500 Left Wing
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

(CUSTOMER REQUEST) CORROSION ON BALANCE PANEL WEIGHT BAY 5 AT LT AILERON (2 EA) 2023-413222<[01] REPLACED BALANCE PANEL WEIGHT BAY 5 AT LT AILERON (2 EA) IAW SRM 51-40-02-0G-0; SRM 51-40-04-0G-0 AND DWG 113A7400 SHEET 36 REV. D; TORQUE APPLIED: 35 LB/IN; TOOL USED: TORQUE 10-50 LB/IN; P/N: QD1R50; S/N: 1018916275; D/D: 05-APR-24.;[02] REPLACED BALANCE PANEL WEIGHT BAY 5 AT LT AILERON (2 EA) IAW SRM 51-40-02-0G-0; SRM 51-40-04-0G-0 AND DWG 113A7400 SHEET 36 REV. D; TORQUE APPLIED: 35 LB/IN; TOOL USED: TORQUE 10-50 LB/IN; P/N: QD1R50; S/N: 1018916275; D/D: 05-APR-24. RII

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