Service difficulty report · Floor Panel · Boeing 7377H4

Difficulty date
May 31, 2023
Submitted
July 5, 2023
Operation
Air carrier
Aircraft
N962WN
Make and model
Boeing 7377H4
Aircraft serial
36963
Aircraft time
38,452 hours, 23,554 cycles
Part
Floor Panel
Part number
UNKNOWN
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 241UF UPPER SKIN HAS PULLED STRANDS.<[01] IDENTIFIED FLOOR PANEL 241UF MATERIAL IAW SRM 53-00-50-0I-1 FIGURE 5 TABLE 5.<BR><BR>DAMAGE EXCEEDS ALLOWABLE DAMAGE LIMITS IAW SRM 53-00-50-1A-1 PARAGRAPH 4.F. <BR><BR>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 INSERT HOLES USING BMS4-23 TYII LOT# 1525675-1 IAW SRM 53-00-50-2R-0 PARAGRAPH 5.S(1) (A-C) AND BWG DWG 146A5810 ID:0470;[02] INSTALLED INSERTS USING BMS 5-107 LOT#AK2KP8383K IAW SRM 53-00-50-2R-0 PARA 5.S(D-G) AND BDWG 146A5810-470.<BR>INSERTS NEED CURE.;[03] INSTALLED REMAINING INSERTS USING BMS 5-107 ADHESIVE LOT#AK2KP8383K IAW BWG DWG: 146A5810 ID:0470 AND BAC5085 PARA 8.4.2.2(A-G).<BR><BR>CURED BMS 5-107 ADHESIVE FOR ALL INSERTS USING THERMOMETER ID: ATS2192 CAL DUE: 08/2023 IAW SRM 53-00-50-2R-0 PARAGRAPH 5.S(1)(H); BWG DWG: 146A5810 ID:0470 AND BAC5085 PARA 8.4.2.2(H) AND FIG. 15.<BR><BR>PART MARKED PANEL AND APPLIED PROTECTIVE TAPE IAW BWG DWG: 146A5810 ID:0470.;[04] VERIFIED CORRECTIVE ACTIONS 1-3<BR><BR>VERIFIED MEASUREMENTS TABLE;[05] DAMAGED PANEL WAS REPLACED WITH NEW FABRICATED FROM RAW STOCK IAW SRM 53-00-50-2R-0 AND DRAWING 146A5810.<BR><BR>UPLOADED CURE SHEET.<BR><BR>JOB COMPLETE.;[06] VERIFIED CORRECTIVE ACTION 5

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