Service difficulty report · Fitting · Boeing 7377H4

Difficulty date
June 3, 2020
Submitted
August 16, 2021
Operation
Air carrier
Aircraft
N476WN
Make and model
Boeing 7377H4
Aircraft serial
32475
Aircraft time
55,307 hours, 32,813 cycles
Part
Fitting
Condition
Corroded
Location
Aft Drain Mast
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*** AT AREA AFT OF ACB AROUND FASTENER BS991 LBL19 WL184. MARKED / REMOVED AND REPLACED AFT DRAIN MAST FITTING PER SRM 51-40-02 AND SRM 51-40-05

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