Service difficulty report · Floor Panel · Boeing 7377H4

Difficulty date
June 1, 2023
Submitted
July 5, 2023
Operation
Air carrier
Aircraft
N962WN
Make and model
Boeing 7377H4
Aircraft serial
36963
Aircraft time
38,452 hours, 23,554 cycles
Part
Floor Panel
Part number
UNKNOWN
Condition
Pulled
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 FLOOR PANEL 221AF UPPER SKIN HAS PULLED STRANDS.<[01] IDENTIFIED PANEL MATERIAL IAW SRM 53-00-50-0I-1 SHEET 1; FIGURE 2; TABLE 2; <BR>AND BOEING DWG DOC: 141A5810 ID: 0728.<BR><BR>PANEL DAMAGE TO UPPER SKIN PLIES IS OUT OF ALLOWABLE DAMAGE LIMITS IAW SRM <BR>53-00-50-1A-1 PAR. 4. F.<BR><BR>PANEL DAMAGE IS REPAIRABLE IAW SRM 53-00-50-2R-1 FOLLOWING SRM <BR>53-00-50-2R-0 PAR. 2. A. TABLE 201<BR><BR>REMOVED ALL INSERTS AND SANDED AWAY DAMAGED PLIES ON UPPER FACESHEET<BR>CLEANED IAW SRM 53-00-50-2R-1 PAR. 3. A. - F. OK TO POT OPEN CORE;[02] VALIDATED REPAIR PER SRM 53-00-50-2R-1;[03] VERIFIED CORRECTIVE ACTIONS 1 AND 2<BR><BR>VERIFIED MEASUREMENTS TABLE<BR><BR>VALIDATED REPAIR PER SRM 53-00-50-2R-1;[04] POTTED UPPER SURFACE OPEN CORE AREAS USING BMS5-28 TY19 EPOCAST 1619 LOT# <BR>1528833-1 IAW SRM 53-00-50-2R-1 PAR. 3. G. (1) & 3. G. (2) NEEDS CURE.;[05] CURED POTTING; SANDED FLUSH; CLEANED REPAIR AREA AND FABRICATED REPAIR PLIES FROM BMS9-3 STYLE 1581 LOT 1522395-2 IAW SRM 53-00-50-2R-1 PARAGRAPH 3.H-J AND K.(1).(A). OK TO INSTALL REPAIR PLIES.;[08] INSTALLED REPAIR PLIES TO UPPER SURFACE USING BMS8-201 TY 4 EPOCAST 50-A (946) <BR>LOT# 1527294-1; SET UP VACUUM BAG SYSTEM WITH BLEED DOWN TEST CHECKED GOOD <BR>USING GAUGE ID: ATS2441 CAL/DUE: 08/2023 IAW SRM 53-00-50-2R-1 PAR. 3. K. <BR>(1) (B) & (C) & 3. L. (1) (A) - (C). OK TO CURE.

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