Service difficulty report · Floor Panel · Boeing 7377H4

Difficulty date
June 4, 2023
Submitted
July 17, 2023
Operation
Air carrier
Aircraft
N963WN
Make and model
Boeing 7377H4
Aircraft serial
36676
Aircraft time
38,123 hours, 23,431 cycles
Part
Floor Panel
Part number
UNKNOWN
Condition
Broken
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

FWD CABIN FLOOR PANEL 221BF HAS BROKEN TANG ON AFT O/B CORNER<[01] IDENTIFIED FLOOR PANEL 221BF MATERIAL IAW SRM 53-00-50-0I-1 FIGURE 2 TABLE 2. DAMAGE AT DISCREPANT LOCATION AND FOUND ADDITIONAL AREAS ON LOWER SURFACE TO BE OUT OF ALLOWABLE DAMAGE LIMITS IAW SRM 53-00-50-1A-1 PARAGRAPH 4.F. ALL AREAS ON LOWER SURFACE MAY BE REPAIRED IAW SRM 53-00-50-2R-1. <BR><BR>REMOVED SEVERAL INSERTS TO FACILITATE REPAIR IAW SRM 53-00-50-2R-1 PARAGRAPH 3.B<BR><BR>REMOVED DAMAGED SKIN AT DISCREPANT AREA; AND REMOVED DAMAGE AT ADDITIONAL AREAS ON THE LOWER SURFACE. REMOVED LOOSE PIECES OF CORE AND CLEANED ALL AREAS. OKAY TO APPLY POTTING AT ALL LOCATIONS IAW SRM 53-00-50-2R-1 PARAGRAPH 3.A;C-F.;[02] VALIDATED REPAIR PER SRM 53-00-50-2R-1;[FABRICATED REPAIR PLIES USING BMS9-3 ST1581 LOT# 1526805-2. OKAY TO INSTALL PLIES AT ALL DISCREPANT LOCATIONS IAW SRM 53-00-50-2R-1 PARAGRAPH 3.H-K(1)(A).;[06] VERIFIED CORRECTIVE ACTIONS 4 AND 5<BR><BR>OK TO INSTALL REPAIR PLIES;[07] INSTALLED REPAIR PLIES USING BMS8-201 TYPE 4 LOT#1530326-1; VACUUM BAGGED; CHECKED FOR LEAKS; LEAK CHECKED GOOD USING VACUUM GAUGE ATS2441 CAL DUE DATE 08/2023 AND SET FOR CURE USING HEAT LAMPS AND THERMOMETER ATS2209 CAL DUE DATE 10/2023 IAW SRM 53-00-50-2R-1 PARA 3K(1)-L(1)-M(1).

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