Service difficulty report · Floor Panel · Boeing 7377H4

Difficulty date
May 24, 2023
Submitted
June 29, 2023
Operation
Air carrier
Aircraft
N960WN
Make and model
Boeing 7377H4
Aircraft serial
36675
Aircraft time
38,108 hours, 23,248 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

AFT CABIN FLOOR PANEL 241ADF HAS A BROKEN AFT O/B CORNER<[01] IDENTIFIED PANEL IAW SRM 53-00-50-0I-1 FIGURE 6. DAMAGE TO THE PANEL IS BEYOND ALLOWABLE LIMITS IAW SRM 53-00-50-1A-1 PARAGRAPH 4.B AND WILL BE REPAIRED IAW SRM 53-00-50-2R-4. REMOVED AN APPROX. 1.7'X.8' AREA OF DAMGED BAGSIDE PLIES AND PARTIAL CORE AND CLEANED REPAIR AREA WITH NO DISBOND OR CONTAMINATION NOTED; WORK PERFORMED IAW SRM 53-00-50-2R-4 PARAGRAPH 3.A-E.;[02] VALIDATED APPLICABILITY OF SRM 53-00-50-2R-4.;[03] INSPECTED AND VERIFIED CORRECTIVE ACTIONS 1 AND 2.<BR><BR>VERIFIED MEASUREMENTS TABLE.;[04] POTTED REPAIR AREA WITH BMS5-28 TYPE 19 LOT AK2LP8414K AND SET TO CURE WITH HOTBONDER ID: NCX000523 DUE: 06/2023 ALL IAW SRM 53-00-50-2R-4 PARAGRAPH 3.F-G.;[05] CURED POTTING COMPOUND; SANDED TO CONTOUR.<BR><BR>REMOVED 3 EA THROUGH INSERTS TO FACILITATE MAINTENANCE.<BR><BR>FABRICATED REPAIR PLIES FROM BMS 9-3 TY H2 LOT#1522395-2 IAW SRM 53-00-50-2R-4.PARA 3.B; G-K.(1).<BR>OK TO INSTALL.;[06] VERIFIED CORRECTIVE ACTIONS 4 AND 5<BR><BR>OK TO INSTALL REPAIR PLIES;[07] INSTALLED REPAIR PLIES USING RESIN BMS 8-201 TY 4 LOT#1527294-1 USING SCALE ID:ATS2276 CAL DUE:04/2024.<BR>VACUUM BAGGED; CHECKED FOR LEAKS USING VACUUM GAUGE ID:E11543 CAL DUE:09/2023.<BR>LEAK CHECK GOOD IAW SRM 53-00-50-2R-4.PARA 3.K.(1); L.(1).;[08] VERIFIED CORRECTIVE ACTION 7;[09] CURED REPAIR PLIES USING HEAT RAMP AND THERMOMETER ID:ATS2402 CAL DUE:07/2023 IAW SRM 53-00-50-2R-4.PARA 3.L.(1); M.(1).

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