Service difficulty report · Shield · Boeing 7377H4

Difficulty date
February 3, 2023
Submitted
March 2, 2023
Operation
Air carrier
Aircraft
N404WN
Make and model
Boeing 7377H4
Aircraft serial
27892
Aircraft time
72,784 hours, 43,149 cycles
Part
Shield
Condition
Corroded
Location
Zn 100 Fus Lower
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 FWD CARGO BAY ON FWD SHIELD RBL23 BS439 WL156.<[01] EVALUATED CORROSION ON SHIELD BS 439 RBL 23 WL 156; FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS IN THE SRM AND REQUIRES REPLACEMENT PER SRM 51-10-02-0G-0;[02] VERIFIED CORRECTIVE ACTION 1 AND MEASUREMENT TABLE.;[03] LOCATED AND DRILLED NEW SHIELD BS420 TO BS440 RBL23 WL156 PER SRM 51-40-05-0G-0 AND DWG143A0080.;[04] VERIFIED CORRECTIVE ACTION 3

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