Service difficulty report · Floor 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
Floor 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 FLOOR SUPPORT AT FWD CABIN BS294+13 LBL11 WL208.<[01] NO ENTRIES FOUND ON SRM DAMAGE REMOVED I.A.W ORIGINAL MATERIAL THICKNESS IS 0.080' REMAINING MATERIAL THICKNESS IS 0.040 PART TO BE REMOVE AND REPLACE I.A.W SRM 51-10-02-0G-0 PAR 9.A(1);C;[02] VERIFIED CORRECTIVE ACTION 1.;[03] REMOVED DAMAGE LAV FLOOR SUPPORT BS294-312 LBL11 WL208 LOCATED AND DRILLED NEW ALL I.A.W SRM 51-10-02-0G-0;SRM 51-40-05-0G-0 AND BOEING DWG 141A5600 OK TO INSTALL;[04] VERIFIED CORRECTION ACTION ITEM 3 AND OK TO INSTALL GIVEN.;[05] CORRECTION ON CORRECTIVE ACTION 3 SHOULD READ<BR>INSTALLED NEW LAV FLOOR SUPPORT BS294-312 LBL11 WL208 LOCATED AND DRILLED NEW ALL I.A.W SRM 51-40-02-0G-0;SRM 51-40-05-0G-0 AND BOEING DWG 141A5600 OK TO INSTALL;[06] CORRECTION ON CORRECTIVE ACTION 5 SHOULD READ<BR>REMOVED DAMAGE LAV FLOOR SUPPORT BS294-312 LBL11 WL208 LOCATED AND DRILLED NEW ALL I.A.W SRM 51-40-02-0G-0;SRM 51-40-05-0G-0 AND BOEING DWG 141A5600 OK TO INSTALL;[07] INSTALLED NEW LAV FLOOR SUPPORT BS294-312 LBL11 WL208 I.A.W SRM 51-40-02-0G-0 AND BOEING DWG 141A5600;[08] VERIFIED CORRECTION ACTION ITEM 7.;[09] COMPLETED REMOVED AND REPLACED LAV FLOOR SUPPORT BS294-312 LBL11 WL208 I.A.W SRM 51-40-02-0G-0 AND BOEING DWG 141A5600 TASK COMPLETED;[10] VERIFIED CORRECTIVE ACTION 9;[11] VERIFIED MEASUREMENT TABLE

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