Service difficulty report · Panel · Boeing 7377H4

Difficulty date
February 3, 2023
Submitted
March 2, 2023
Operation
Air carrier
Aircraft
N404WN
Make and model
Boeing 7377H4
Aircraft serial
27892
Aircraft time
72,784 hours, 43,149 cycles
Part
Panel
Condition
Debonded
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 521JB IS DISBONDED AT CORNER<[01] IDENTIFIED PANEL 521JB MATERIAL IAW SRM 57-41-01-0I-4; FIGURE 4; TABLE 4; ITEM [1].<BR><BR>CLEANED PANEL AND REMOVED FINISH AS NEEDED TO EVALUATE DAMAGE IAW AMM 51-21-11-150-815 PARA. 17. C. AND D.<BR><BR>VISUAL INSPECTION FOUND DAMAGE TO GLASS FIBER PLIES TO BE OUT OF ALLOWABLE LIMITS IAW SRM 57-41-01-1A-1 PARA 4.A.(5).<BR><BR>DAMAGE WILL BE REPAIRED IAW SRM 51-70-05-2R-6 AS GIVEN IAW SRM 57-41-01-2R-1 PARA 4. B. (2). AND TABLE 202.<BR><BR>REMOVED (2 EA.) BACKPLATES TO FACILITATE REPAIR IAW SRM 51-40-02-0G-0 PARA 4.E.<BR><BR>REMOVED INNER SURFACE ALUMINUM FOIL TO FACILITATE REPAIR IAW SRM 51-70-14-2R-3 PARA 4. A. (1) - (2).<BR><BR>REMOVED 2 AREAS OF DAMAGE ON BAG SIDE AND 2 AREAS OF DAMAGE ON TOOL SIDE IAW SRM 51-70-05-2R-6 PAR. 4.A-C.[11] FABRICATED AND INSTALLED ALUMINUM FOIL ON INNER SURFACE USING BMS 8-289 TYPE 0/250 LOT: 1507307-1 FOIL AND BMS 5-128 LOT: 1466783-1 ADHESIVE. IAW SRM 51-70-14-2R-3 PARA 4. A. (3) - (4). <BR><BR>INSTALLED VACUUM BAG FOR CURE AND LEAK CHECKED GOOD AT 10:00AM USING VACUUM GAUGE ID: ATS2107; CAL DUE: 04/2023 IAW SRM 51-70-14-2R-3 PARA 4. A. (11) (A) - (G) AND (I) - (K) (1) - (2).

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