Service difficulty report · Floor Panel · Boeing 7377H4

Difficulty date
April 28, 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

AFT FLOOR PANEL 241AAF UPPER SKIN HAS MULTIPLE AREAS OF PULLED STRANDS.<[01] IDENTIFIED PANEL 241AAF MATERIAL IAW SRM 53-00-50-0I-1 FIGURE 6 TABLE 6. DAMAGE TO UPPER SURFACE EXCEEDS ALLOWABLE DAMAGE LIMITS IAW SRM 53-00-50-1A-1 PARAGRAPH 4.F. FLOOR PANEL 241AAFF DAMAGE IS BEYOND ECONOMICAL REPAIR AND WILL BE REPLACED IAW SRM 53-00-50-2R-0 PARAGRAPH 1.A (NOTE).<BR><BR>ROUGH CUT FLOOR PANEL FROM BMS4-17 TYVI LOT#1486491-1 IAW SRM 53-00-50-2R-0 PARAGRAPH 4.A AND BAC DWG 147A5810 ID:0008;[02] LOCATED AND COUNTERBORED INSERT HOLES AND INSTALLED INSERTS USING BMS5-107 LOT# AK2KP838K-1 AND CURED INSERTS USING THERMOMETER ID: ATS2208 CAL DUE: 10/2023. INSTALLED GUA1057-1 TAPE LOT# 1522193-1; AND PART MARKED PANEL AS REQUIRED IAW SRM 53-00-50-2R-0 PARAGRAPH 5.S(1); AND BAC DWG 147A5810 ID:0008.;[03] VERIFIED CORRECTIVE ACTIONS 1 AND 2<BR><BR>VERIFIED MEASUREMENTS TABLE;[04] UPLOADED CURE SHEET. JOB COMPLETE;[05] VERIFIED CORRECTIVE ACTION 4

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