Service difficulty report · Shield · Boeing 7377H4

Difficulty date
October 27, 2022
Submitted
November 14, 2022
Operation
Air carrier
Aircraft
N403WN
Make and model
Boeing 7377H4
Aircraft serial
29815
Aircraft time
72,717 hours, 43,173 cycles
Part
Shield
Part number
143A812619
Condition
Corroded
Location
Bs 492-500a
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 FWD CARGO FLOOR STRUCTURE SHIELD (WEB) AT RBL 22 WL 158 BETWEEN BS 492-500A. FOUND TO BE OUT OF LIMITS IAW SRM 53-30-15-1A-1. LOCATED, AND DRILLED A NEW SHIELD IAW SRM 51-40-05-0G-0. TREATED AND PRIMED IAW AMM 51-21-41-370-804, AND AMM 51-21-72-370-804.

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