Service difficulty report · Floor Panel · Boeing 73776Q

Difficulty date
April 15, 2023
Submitted
May 8, 2023
Operation
Air carrier
Aircraft
N551WN
Make and model
Boeing 73776Q
Aircraft serial
30280
Aircraft time
66,624 hours, 41,198 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

FLOOR PANEL 231ZF UPPER SKIN HAS AREAS OF PULLED STRANDS.<[01] IDENTIFIED PANEL MATERIAL IAW SRM 53-00-50-0I-1 SHEET 1; FIGURE 4; TABLE 4.<BR><BR>UPON INVESTIGATION; PANEL DAMAGE EXCEEDS ALLOWABLE DAMAGE LIMITS IAW SRM<BR>53-00-50-1A-1 PAR. 4. E. & 4. F.<BR><BR>DUE TO SIZE OF DAMAGE FABRICATING NEW PANEL FOLLOWING IAW SRM 53-00-50-2R-0 PAR. 1.A. NOTE:<BR><BR>FABRICATED NEW FLOOR BOARD USING BMS4-23 TY II LOT# 1508291-1; <BR>SANDED EDGES AND CLEANED IAW SRM 53-00-50-2R-0 PAR. 4.A.(2) <BR>TABLE 204; & 5.E. STILL NEED LOCATED INSERT DRILLING.<BR><BR>UPDATED MEASUREMENTS TABLE.;[02] LOCATED AND INSTALLED ALL INSERTS USING BMS 5-107 LOT#AK2KP8383K-1; CURED WITH THERMOMETER ID:ATS2208 CAL DUE 10/2023; PART MARKED PANEL IAW SRM 53-00-50-2R-0 PARA 5.S AND BOEING DWG 144A5810 ID:0020.;[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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