Service difficulty report · Floor Panel · Boeing 7377H4

Difficulty date
March 27, 2023
Submitted
April 18, 2023
Operation
Air carrier
Aircraft
N281WN
Make and model
Boeing 7377H4
Aircraft serial
36528
Aircraft time
51,516 hours, 31,045 cycles
Part
Floor Panel
Condition
Delaminated
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

PANEL 193AR HAS A DELAMINATION ON THE OUTER SKIN AT 6' FWD OF AFT EDGE (MARKED)<[01] IDENTIFIED PART AND MATERIAL IAW SRM 53-40-70-0I-1 FIGURES 1-2; TABLE 2; ITEM [18].<BR>FOUND DAMAGE TO BE OUT OF ALLOWABLE DAMAGE LIMITS IAW SRM 53-40-70-1A-1 PAR 4.B (6).<BR>A PERMANENT REPAIR WILL BE ACCOMPLISHED IAW SRM 51-70-05-2R-2 AS DIRECTED PER SRM 53-40-70-2R-1 PAR 4.B (2) AND TABLE 202.;[02] DETERMINED EXTENT OF DAMAGE VIA VISUAL METHOD.<BR>REMOVED DAMAGED AND CONTAMINATED FIBERGLASS PLIES. PREPARED AREA FOR REPAIR AND CLEANED.<BR>WORK ACCOMPLISHED IAW SRM 51-70-05-2R-1 PAR 4.A-B.;[03] CORRECTION TO CORRECTIVE ACTION 1: A PERMANENT REPAIR WILL BE ACCOMPLISHED IAW SRM 51-70-05-2R-1.;[04] VALIDATED REPAIR IAW SRM 51-70-05-2R-1.;[05] VERIFIED CORRECTIVE ACTIONS 1-4<BR><BR>VERIFIED MEASUREMENTS TABLE<BR><BR>VALIDATED REPAIR PER SRM 51-70-05-2R-1;[06] FABRICATED AND INSTALLED REPAIR PLIES USING FIBERGLASS BMS 8-79; CLASS 3; STYLE 120; LOT# 1520138-1 AND FILM ADHESIVE BMS 5-129; TYPE 2; GRADE 5; LOT# 1513774-1. VACUUM BAGGED REPAIR; CHECKED VACUUM BAG FOR LEAKS; VACUUM BAG CHECKED GOOD AND SET REPAIR TO CURE. WORK ACCOMPLISHED IAW SRM 51-70-05-2R-1 PAR 4.C-E.<BR><BR>CALIBRATED TOOLS USED:<BR>VACUUM GAUGE: ID: ATS2441; CAL DUE DATE: 08/2023<BR>HOT BOND MACHINE: ID: ATS532; CAL DUE DATE: 06/2023;

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