Service difficulty report · Channel · Boeing 7377H4

Difficulty date
March 10, 2020
Submitted
August 19, 2021
Operation
Air carrier
Aircraft
N427WN
Make and model
Boeing 7377H4
Aircraft serial
29831
Aircraft time
61,697 hours, 36,249 cycles
Part
Channel
Condition
Corroded
Location
Bs 312-355
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*** ON FORWARD ENTRY DOOR MOP SILL AT B.S. 312-355; L.B.L. 62; W.L. 208.1. / REMOVED CORROSION FROM FED MOPSILL BS312-355 LBL62 WL208.1; ORIGINAL THICKNESS IS 0.090' MAX MAT REMOVED 10' X 2' X .015' REMAINING THICKNESS .075' FOUND TO BE OUT OF LIMITS; REMOVED AND REPLACED FED MOPSILL IAW SRM 53-10-15-01-1; SRM 53-10-15-1A-1; SRM 51-40-02 AND DWG# 141A8110

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