Service difficulty report · Floor Panel · Boeing 7377CT

Difficulty date
October 15, 2022
Submitted
November 17, 2022
Operation
Air carrier
Aircraft
N569WN
Make and model
Boeing 7377CT
Aircraft serial
33656
Aircraft time
66,340 hours, 34,395 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 241DF UPPER SURFACE HAS LARGE AREAS OF PULLED STRANDS. / [01] IDENTIFIED FLOOR PANEL 241DF MATERIAL IAW SRM 53-00-50-0I-1 FIGURE 4 TABLE 4. 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 <BR><BR>FABRICATED NEW FLOOR PANEL AND LOCATED INSERT HOLES USING BMS4-23 TYII LOT#1504036-1 IAW SRM 53-00-50-2R-0 PARAGRAPH 5.S(1)(A-C); AND BAC DWG 144A5810 ID:0128.;[02] INSTALLED INSERTS USING BMS5-107 LOT# AK1KP9159K AND CURED USING THERMOMETER ID: ATS1777 CAL DUE: 08/2023. APPLIED BMS8-283 TAPE LOT# OCN000054342 IAW SRM 53-00-50-2R-0 PARAGRAPH 5.S(1)(D-H); AND BAC DWG 144A5810 ID:0128.;[03] PART MARKED FLOOR PANEL AS REQUIRED PER BAC DWG 144A5810 ID:0128. UPLOADED CURE SHEET. FLOOR PANEL 241DF WAS DAMAGED BEYOND ECONOMICAL REPAIR; AND A REPLACEMENT PANEL WAS FABRICATED IAW SRM 53-00-50-2R-0 AND BAC DWG 144A5810 ID:0128;[04] VERIFIED CORRECTIVE ACTIONS 1-3 VERIFIED MEASUREMENTS TABLE

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