Service difficulty report · Channel · Boeing 7377H4

Difficulty date
July 6, 2023
Submitted
August 29, 2023
Operation
Air carrier
Aircraft
N297WN
Make and model
Boeing 7377H4
Aircraft serial
32542
Aircraft time
51,861 hours, 31,224 cycles
Part
Channel
Part number
UNKNOWN
Condition
Corroded
Location
Zn 200 Fus Top
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 FSD MOP SILL BS294+7 RBL54 WL208.<[01] VERIFIED APLICABILITTY OF SRM 53-10-15-1A-2;[02] EVALUATED CORROSION ON FSD MOP SILL BS294+7 RBL54 WL208 1'X1' ORIGINAL MATERIAL THICKNESS IS 0.080' REMAINING MATERIAL THICKNESS IS 0.020' DAMAGE FOUND TO BE OUT LIMITS I.A.W SRM 53-10-15-1A-2 PAR 4.A(2)(A) FIGURE 103 DETAIL D PART TO BE REMOVE AND REPLACE I.A.W SRM 51-10-02-0G-0 PAR 9.A(1);[03] TOOLS USED CORRECTIVE ACTION 2<BR>TOOL USED<BR>ATS 1225 DUE DATE<BR>08/2023 AND<BR>ATS2883<BR>DUE DATE 04/2024.;[04] VERIFIED CORRECTIVE ACTIONS 1;2 AND 3.;[05] REMOVED FSD MOPSILL I.A.W SRM 51-40-02-0G-0;[06] LOCATED AND DRILLED FSD MOPSILL I.A.W SRM 51-40-05-0G-0 AND BOEING DWG 141A8310 OK TO INSTALL;[07] VERIFIED CORRECTIVE ACTION #6;[08] INSTALLED FSD MOPSILL I.A.W SRM 51-40-02-0G-0 AND BOEING DWG 141A8310 EXCEPT FOR FASTENER COMMON TO FWD ATTACH ANGLE TO COCKPIT FLOOR COSTUMER CARD TTG8Q00M8TPR;[09] VERIFIED CORRECTIVE ACTION 8;[10] VERIFIED MEASUREMENT TABLE

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