Service difficulty report · Floor Panel · Boeing 7377H4

Difficulty date
March 8, 2021
Submitted
April 5, 2021
Operation
Air carrier
Aircraft
N219WN
Make and model
Boeing 7377H4
Aircraft serial
32490
Aircraft time
53,274 hours, 31,733 cycles
Part
Floor Panel
Condition
Damaged
Location
Fuselage
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 231YF INSERT IS DAMAGED AT FWD L/H UPPER CORNER (MARKED) / IDENTIFIED FLOOR PANEL 231YF IAW SRM 53-00-50-0I-1 FIGURE 4; SHEET 1; TABLE 4. UPON INSPECTION OF PANEL FOUND MULTIPLE AREAS OF DAMAGE TO UPPER AND LOWER SURFACES. DAMAGED INSERT AT FWD L/H UPPER CORNER; AS MARKED; AND DAMAGE FOUND ON FLOOR PANEL 231YF ARE OUT OF ALLOWABLE DAMAGE LIMITS IAW SRM 53-00-50-1A-1 PAR 4E(2B). DUE TO THE EXTENT OF DAMAGE OPTED TO FABRICATE NEW FLOOR PANEL IAW SRM 53-00-50-2R-0 PAR 1A(NOTE); 4A(2). FABRICATED NEW FLOOR PANEL OUT OF BMS 4-17 TYVI LOT # 420733-1; LOCATED; DRILLED; UPSIZED; AND INSTALLED ALL INSERTS USING BMS 5-107 LOT # AK0HP5746K; CURED; AND PART MARKED PANEL IAW DWG 144A5810-124; BAC5085 PAR 8.4.2.2 A-F; AND SRM 53-00-50-2R-0 PAR4A(2).56563U 14MAR21

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