Service difficulty report · Panel · Boeing 7378H4

Difficulty date
February 2, 2023
Submitted
March 10, 2023
Operation
Air carrier
Aircraft
N8524Z
Make and model
Boeing 7378H4
Aircraft serial
36970
Aircraft time
20,203 hours, 9,817 cycles
Part
Panel
Condition
Delaminated
Location
Zn 600 Right Win
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 621PB HAS DELAMINATION AT FWD INBOARD CORNER<[01] IDENTIFIED PANEL MATERIAL IAW SRM 57-41-01-0I-4 FIGURE 3; TABLE 3; ITEM [1] AND DWG DOC: 116A9110 ID: 0026 <BR><BR>PANEL FWD INBOARD CORNER IS OUT OF ALLOWABLE DAMAGE LIMITS IAW SRM 57-41-01-1A-1 PAR. 4.A.(5)<BR><BR>PANEL FWD INBOARD CORNER DAMAGE IS REPAIRABLE IAW SRM 51-70-05-2R-6 AS DIRECTED BY SRM 57-41-01-2R-1 PAR. 4.F.<BR><BR>REMOVED (2EA) BACKPLATES IAW SRM 51-40-02-0G-0 PAR. 4.E.<BR><BR>REMOVED DAMAGED FINISH FROM TOOLSIDE IAW AMM 51-21-11-150-815 PAR. 17.D.(3) & (4)(C)(1)<BR><BR>SANDED AWAY DAMAGED PLIES FROM FWD INBOARD CORNER AND CLEANED REPAIR AREA IAW SRM 51-70-05-2R-6 PAR. 4.A.-D.<BR><BR>UPDATED MEASUREMENTS TABLE.;[02] VALIDATED REPAIR PER SRM 51-70-05-2R-6;[03] VERIFIED CORRECTIVE ACTION ITEM 1-2.;[04] FABRICATED AND INSTALLED REPAIR PLIES USING BMS8-139 CL1 ST1581 LOT# 1507054-1; BMS8-139 CL1 ST120 LOT# 1513199-1 WITH ADHESIVE BMS5-154 TY2/3 CL2 GRO5 LOT# 1509243-1 SET UP VACUUM BAG SYSTEM WITH LEAK CHECKED GOOD AND SET TO CURE USING HEATCON HOTBONDER ID: ATS532 CAL/DUE: 06/2023 IAW SRM 51-70-05-2R-6 PAR. 4.E.-G.;

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