Service difficulty report · Counterweight · Boeing 73773V

Difficulty date
June 18, 2023
Submitted
July 25, 2023
Operation
Air carrier
Aircraft
N561WN
Make and model
Boeing 73773V
Aircraft serial
32417
Aircraft time
59,068 hours, 38,076 cycles
System (JASC)
5751 · Ailerons
Part
Counterweight
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

CORROSION AILERON BALANCE ADJUSTMENT WEIGHT LOCATED BALANCE BAY #5 UPPER AND LOWER AT LT WING 2023-394673<[01] REPLACED AILERON BALANCE WEIGHT LOC. BALANCE BAY #5 UPPER AND LOWER LT WING IAW B737-700 SRM 51-60-01-0G-0 STEP 5.A.(5)(D);[02] REPLACED AILERON BALANCE WEIGHT LOC. BALANCE BAY #5 UPPER AND LOWER LT WING IAW B737-700 SRM 51-60-01-0G-0 STEP 5.A.(5)(D). RII.

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