Service difficulty report · Floor Panel · Boeing 7377H4

Difficulty date
April 6, 2023
Submitted
May 17, 2023
Operation
Air carrier
Aircraft
N958WN
Make and model
Boeing 7377H4
Aircraft serial
36673
Aircraft time
38,993 hours, 23,664 cycles
Part
Floor Panel
Condition
Pulled
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

PASSENGER CABIN FLOOR PANEL 241AF UPPER SKIN HAS MULTIPLE AREAS OF PULLED STRANDS.<[01] PART/MATERIAL IDENTIFIED PER SRM 53-00-50-0I-1 FIGURE 4 TABLE 4 SECTION 44. <BR>CABIN FLOOR UPPER SURFACE EXCEEDS ALLOWABLE LIMITS AS GIVEN IN SRM 53-00-50-1A-1 PARA 4 CONDITIONS A-F REQUIRES REPLACEMENT.<BR>FABRICATE REPLACEMENT FLOOR PANEL IAW SRM 53-00-50-2R-0 PARA 1. A. NOTE:;[02] BEGAN FABRICATING NEW FLOOR PANEL 241AF USING BMS 4-23 LOT#1508290-1 IAW SRM 53-00-50-2R-0 PARA 1.A(NOTE).;[03] COMPLETED FABRICATION OF NEW FLOOR PANEL IAW SRM 53-00-50-2R-0 PARA 1.A(NOTE).<BR><BR>INSTALLED INSERTS AND CURED USING HEAT LAMP WITH BMS 5-107 LOT#AK2KP8383K-1 IAW SRM 53-00-50-2R-0 PAR. 5.S(1) (D-G) AND BAC DWG 144A5810 ID:0127<BR><BR>PROTECTIVE TAPE TO LOWER SURFACE STILL REQUIRES INSTALL.;[04] CORRECTED MEASUREMENTS TABLE WITH UPDATED INFORMATION.;[05] ADDING TO LINE 3; 'THERMOMETER ID: ATS2209 / CAL DUE DATE: 10/2023';[06] CORRECTION TO LINE 3; 'SRM 53-00-50-2R-0 PAR. 5.S(1) (D-G)' SHOULD READ ' SRM 53-00-50-2R-0 PAR. 5.S(1) (D-H)'.;[07] VERIFIED CORRECTIVE ACTION ITEMS 1-6 AND MEASUREMENTS TABLE.;[08] INSTALLED PROTECTIVE TAPE; AND PART MARKED PANEL IAW BOEING DWG 146A5810-127<BR><BR>JOB COMPLETE;[09] VERIFIED CORRECTIVE ACTION ITEM 8. JOB COMPLETE

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