Service difficulty report · Floor Panel · Boeing 7377H4

Difficulty date
April 29, 2023
Submitted
June 1, 2023
Operation
Air carrier
Aircraft
N961WN
Make and model
Boeing 7377H4
Aircraft serial
36962
Aircraft time
37,902 hours, 23,158 cycles
Part
Floor Panel
Condition
Pulled
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

FLOOR PANEL 241KF UPPER SKIN HAS ARAS OF PULLED STRANDS.<[01] IDENTIFIED FLOOR PANEL 241KF MATERIAL IAW SRM 53-00-50-0I-1 FIGURE 5 TABLE 5. DAMAGE EXCEEDS ALLOWABLE DAMAGE LIMITS IAW SRM 53-00-50-1A-1 PARAGRAPH 4.F. DAMAGE TO FLOOR PANEL IS BEYOND ECONOMICAL REPAIR AND MAY BE REPLACED BY FABRICATING A NEW PANEL IAW SRM 53-00-50-2R-0 PARAGRAPH 1.A (NOTE).<BR><BR>FABRICATED NEW FLOOR PANEL AND LOCATED AND DRILLED INSERT HOLES USING BMS4-17 TYVI LOT# 1525675-1 IAW BAC5085 PARA 8.4.2.1(A-E) AND BWG DWG 146A5810 ID:0505<BR><BR>INSTALLED INSERTS USING BMS 5-107 LOT#AK2KP8383K IAW BAC5085 PARA 8.4.2.2(A-F) AND BWG DWG 146A5810 ID:0505;[02] CURED INSERTS USING THERMOMETER ATS2209 DUE: 10/2023<BR>PART MARKED PANEL IAW SRM 53-00-50-2R-0 PARA 5.S.(1);[03] INSPECTED AND VERIFIED CORRECTIVE ACTIONS. JOB COMPLETE.;[04] ATTACHED CURE SHEETS TO THIS FAULT RECORD.;[05] VERIFIED CORRECTIVE ACTION 4. <BR>JOB COMPLETE.

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