Service difficulty report · Floor Panel · Boeing 7378H4

Difficulty date
November 14, 2024
Submitted
January 3, 2025
Operation
Air carrier
Aircraft
N8621A
Make and model
Boeing 7378H4
Aircraft serial
36917
Aircraft time
36,708 hours, 17,583 cycles
Part
Floor Panel
Condition
Delaminated
Location
Zone 200
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

CABIN FLOOR PANEL 241UF TOP SURFACE DELAMINATED.<[01] REMOVED CABIN FLOOR PANEL 241UF TO BE REPLACED IAW AMM 53-21-00-000-801;[02] OK TO CLOSE CABIN FLOOR PANEL 241UF;[03] OK TO CLOSE;[04] CLOSED CABIN FLOOR PANEL 241UF IAW AMM 53-21-00-400-801;[05] CLOSED CABIN FLOOR PANEL 241UF IAW AMM 53-21-00-400-801 TOOLING ID: ATS3017 DUE DATE: 06/2025;[06] IDENTIFIED 241UF FLOOR PANEL MATERIAL IAW SRM 53-00-50-0I-1 FIGURE 5; TABLE 5. UPON DAMAGE INVESTIGATION; UPPER SURFACE DAMAGE EXCEEDS BEYOND ALLOWABLE DAMAGE LIMITS IAW SRM 53-00-50-1A-1 PAR. 4. F. WILL FABRICATE NEW 241UF FLOOR PANEL FROM REPLACEMENT MATERIAL IAW SRM 53-00-50-2R-0 PAR. 1. A. NOTE: REMOVED CABIN FLOOR PANEL 241UF TO BE REPLACED IAW AMM 53-21-00-000-801 FABRICATED NEW 241UF FLOOR PANEL USING BMS4-17 TY6 LOT # 1579499-1; LIGHTLY SANDED EDGES SMOOTH; LOCATED; DRILLED AND INSTALLED (32EA) THROUGH INSERTS USING BMS5-107 CL1 LOT # AK4BP8844K; CLEANED AND CURED ALL THROUGH INSERTS UNDER HEATLAMP MONITORED BY THERMOMETER ID: ATS1776 CAL/DUE: 09/2025; PART MARKED PANEL IAW SRM 53-00-50-2R-0 PAR. 4. A. (2) TABLE 204.; 5. S. (1) (A) - (H).; BOEING DWG: 146A5810 ID: 0470. AND BAC5085. CLOSED CABIN FLOOR PANEL 241UF IAW AMM 53-21-00-400-801 TOOLING ID: ATS3017 DUE DATE: 06/2025;[07] VERIFIED CORRECTIVE ACTION #5; 6

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