Service difficulty report · Shield · Boeing 7377H4

Difficulty date
December 14, 2022
Submitted
December 29, 2022
Operation
Air carrier
Aircraft
N401WN
Make and model
Boeing 7377H4
Aircraft serial
29813
Aircraft time
73,533 hours, 43,472 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 ON SHIELD LOCATED BTW BS492 AND BS500A AT LEVEL OF STRG26R WL156.5 AND RBL21.8 IN FWD CARGO COMPARTMENT 2022-688566<[01] TOOL USED: ULTRASONIC THICKNESS GAGE; P/N: 45 MG; S/ N: 130063701; DUE DATE: 16-JUN-23;[02] REPLACED SHIELD LOCATED BTW BS492 AND BS500A AT LEVEL OF STRG26R WL156.5 AND RBL21.8 IN FWD CARGO COMPARTMENT IAW B737-700 SRM 51-40-02 AND DWG 143A0080; SHEET 15; REV - SEE INDIVIDUAL SIGN OFFS BELOW.;[03] REPLACED SHIELD LOCATED BTW BS492 AND BS500A AT LEVEL OF STRG26R WL156.5 AND RBL21.8 IN FWD CARGO COMPARTMENT IAW B737-700 SRM 51-40-02 AND DWG 143A0080; SHEET 15; REV -<BR>RII ACCOMPLISHED <BR> SEE INDIVIDUAL SIGN OFFS BELOW.

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