Service difficulty report · Support · 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
Support
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 THRESHOLD SUPPORT BS312+3 RBL54 WL208.<[01] VERIFIED APLICABILITTY OF SRM 53-10-15-1A-2;[02] REMOVED CORROSION OF FWD SERVICE DOOR MOPSILL THRESHOLD ATTACH ANGLE BS 312+3; RBL54; WL 208 1'X1'AREA AND FOUND OUT LIMITS; MATERIAL THICKNESS 0.090' REMOVED MATERIAL 0.012' REMAINING THICKNESS 0.078' IAW SRM 53-10-15-1A-2; 53-10-15-0I-2 PART TO BE REMOVE AND REPLACE I.A.W SRM 51-10-02-0G-0 PAR 9.A(1)<BR>TOOL USED <BR>ATS 1225 DUE DATE <BR>08/2023 AND <BR>ATS2883 <BR>DUE DATE 04/2024.;[03] VERIFIED CORRECTIVE ACTIONS 1 AND 2.;[04] REMOVED FSD THRESHOLD SUPPORT MOPSILL ATTACH ANGLE AND DRILLED NEW I.A.W SRM 51-40-02-0G-0;SRM 51-40-05-0G-0 AND BOEING DWG 141A8310.OK TO INSTALL;[05] VERIFIED CORRECTIVE ACTION #4;[06] INSTALLED FSD THRESHOLD SUPPORT MOPSILL ATTACH ANGLE I.A.W SRM 51-40-02-0G-0 AND BOEING DWG 141A8310.;[07] VERIFIED CORRECTIVE ACTION 6;[08] VERIFIED MEASUREMENT TABLE

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