Service difficulty report · Panel · Boeing 7377H4

Difficulty date
June 16, 2023
Submitted
July 17, 2023
Operation
Air carrier
Aircraft
N417WN
Make and model
Boeing 7377H4
Aircraft serial
29822
Aircraft time
71,145 hours, 42,399 cycles
Part
Panel
Part number
UNKNOWN
Condition
Pulled
Location
Zn 500 Left Wing
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

L/W L/E PANEL 621HB HAS PULLED FASTENER HOLES (MARKED)<[01] IDENTIFIED PANEL 621HB MATERIAL IAW SRM 57-41-01-0I-4; FIGURE 4; SHEET1; 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>INSPECTION FOUND DELAMINATION DAMAGE ALONG FWD O/B CORNER TO BE OUT OF ALLOWABLE DAMAGE LIMITS IAW SRM 57-41-01-1A-1 PARA 4. A. (5). <BR><BR>REPAIR TO BE COMPLETED IAW SRM 51-70-05-2R-6 AS GIVEN IN SRM 57-41-01-2R-1 PARA 4. B. (2); TABLE 202 AND PARA 4. E. <BR><BR>REMOVED (2 EA.) BACK-UP PLATES TO FACILITATE REPAIR IAW SRM 51-40-02-0G-0 PARA 4. E. AND FIG 8. <BR><BR>REMOVED BONDED ALUMINUM FOIL TO FACILITATE REPAIR IAW SRM 51-70-14-2R-3 PARA 4. A. (1) - (2) (E) AS GIVEN IN SRM 57-41-01-2R-1 PARA 2. E. (2).;;[06] FABRICATED AND INSTALLED ALUMINUM FOIL ON INNER SURFACE IAW SRM 51-70-14-2R-3 PARA 4. A (3) - (5) USING FOIL BMS 8-289 TYPE 0/250 LOT: 1511322-1 AND ADHESIVE BMS 5-128 LOT: 1530179-4. <BR><BR>INSTALLED VACUUM BAG FOR CURE AND LEAK CHECKED GOOD USING VACUUM GAUGE ID: ATS2107 CAL DUE: 12/2023. ALL IAW SRM 51-70-14-2R-3 PARA 4. A (3) - (5) AND 4. A (11) (A) - (G); (I) - (J).;

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