Service difficulty report · Balance Weight · Boeing 7377H4

Difficulty date
September 28, 2021
Submitted
October 14, 2021
Operation
Air carrier
Aircraft
N904WN
Make and model
Boeing 7377H4
Aircraft serial
36616
Aircraft time
45,638 hours, 27,243 cycles
System (JASC)
5751 · Ailerons
Part
Balance Weight
Condition
Corroded
Location
Lt Aileron
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

LEFT HAND AILERON HAS SEVERAL CORRODED WEIGHTS. 2 ON THE LOWER AND AT LEAST 1 ON UPPER SIDE. ; / [01] REMOVED AND INSTALLED NEW LEFT AILERON ADJUST WEIGHT (UPPER) AND AILERON FIXED WEIGHT (LOWER) AT THE MOST INBOARD POSITION OF BAY NO. 5 PER. SRM 51-60-01-0G-0 AND M.M. 20-50-11; [02] VERIFIED REMOVED AND INSTALLED NEW LEFT AILERON ADJUST WEIGHT (UPPER) AND AILERON FIXED WEIGHT (LOWER) AT THE MOST INBOARD POSITION OF BAY NO. 5 PER. SRM 51-60-01-0G-0 AND M.M. 20-50-11; [03] REMOVED AND INSTALLED NEW LEFT AILERON ADJUST WEIGHT (UPPER) AND AILERON FIXED WEIGHT (LOWER) AT<BR>THE SECOND INBOARD POSITION OF BAY NO. 5 PER. SRM 51-60-01-0G-0 AND M.M. 20-50-11

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