Service difficulty report · Floor Panel · Boeing 7377H4

Difficulty date
July 9, 2021
Submitted
August 2, 2021
Operation
Air carrier
Aircraft
N962WN
Make and model
Boeing 7377H4
Aircraft serial
36963
Aircraft time
33,006 hours, 20,057 cycles
Part
Floor Panel
Condition
Pulled
Location
Cabin
Stage of operation
IN
How discovered
V
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 231XF - UPPER SKIN HAS MULTIPLE STRANDS PULLED STARTING FROM LEADING EDGE OF PANEL ; / [01] IDENTIFIED FLOOR PANEL 231XF IAW SRM 53-00-50-0I-1 FIGURE 4; SHEET 1; TABLE 4. DAMAGE NOTED IS OUT OF ALLOWABLE DAMAGE LIMITS IAW SRM 53-00-50-1A-1 PAR 4F. DUE TO THE EXTENT OF THE DAMAGE OPTED TO FABRICATE NEW FLOOR PANEL IAW SRM 53-00-50-2R-0 PAR 4A(1) AND SRM 51-10-02-0G-0 PAR 9A(1).; [02] FABRICATED NEW FLOOR PANEL 231XF OUT OF BMS 4-17 TY VI LOT#1450722-1; LOCATED; DRILLED; UPSIZED ALL INSERT LOCATIONS; INSTALLED ALL INSERTS USING BMS 5-107 LOT#AK0DP4051K; PART MARKED; AND APPLIED TAPE TO LOWER SURFACE IAW SRM 53-00-50-2R-0 PAR 4A(1); DWG 114A5810-126; AND BAC 5085 PAR 6.8.1.2. A-F.; [03] CERTIFIED STEPS 1; 2 AND MEASUREMENTS.; [04] BAC 5085 PAR 8.6.1.2. A-F.<BR><BR>CORRECTION FOR LINE ITEM 2.; [05] VERIFIED CORRECTION OF STEP 2 AND 4; [06] CURED INSERTS USING THERMOMETER ID:ATS2209 S/N:43300739WS IAW BAC 5085 PAR 8.6.1.2. K; AND DWG 144A5810-126.; [07] CERTIFIED STEP 6 (JOB COMPLETE); [08] VERIFIED FABRICATION OF NEW FLOOR PANEL 242BF PER SRM 53-00-50-2R-0; SRM 51-10-02-0G-0; BAC 5085; AND DWG 144A5810-126

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