Service difficulty report · Panel · Boeing 7377H4

Difficulty date
October 7, 2022
Submitted
November 9, 2022
Operation
Air carrier
Aircraft
N201LV
Make and model
Boeing 7377H4
Aircraft serial
29854
Aircraft time
59,586 hours, 35,374 cycles
Part
Panel
Condition
Delaminated
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 #241ZF; UPPER SURFACE PLYIS DELAMINATED / [01] IDENTIFIED PANEL 241ZF MATERIAL IAW SRM 53-00-50-0I-1 FIGURE 6 TABLE 6<BR><BR>DAMAGE EXCEEDS ALLOWABLE DAMAGE LIMITS IAW SRM 53-00-50-1A-1 PAR.4 B<BR><BR>DAMAGE IS REPAIRABLE IAW SRM 53-00-50-2R-1<BR><BR>REMOVED (17EA) THROUGH INSERTS TO FACILITATE REPAIR<BR>REMOVED DAMAGE TO UPPER SURFACE FACE SHEET ONLY; MEASURING 56'X5' ; CLEANED; WITH NO CONTAMINATION NOTED IAW SRM 53-00-50-2R-1 PAR.3 A-C; E-F;[02] VALIDATED APPLICABILITY OF REPAIR TO BE COMPLETED IAW SRM 53-00-50-2R-1.NOTE: CORE IS NOT DAMAGED AND REPAIR IS TO UPPER SKIN PLIES ONLY.;[03] VERIFIED CORRECTIVE ACTION 1 AND 2;[04] FABRICATED REPAIR PLIES USING BMS9-3 ST1581 LOT#1502472-1 IAW SRM 53-00-50-2R-1 PAR.3 K(1)(A)<BR><BR>OK TO INSTALL;[05] VERIFIED CORRECTIVE ACTION 4;[06] INSTALLED REPAIR PLIES USING BMS8-201 TYPE III LOT#AK2EP8210K; VACUUM BAGGED; LEAK CHECKED GOOD USING VACUUM GAUGE ID:ATS2796 DUE:10/2023 IAW SRM 53-00-50-2R-1 PAR.3 K(1)(B-C) - (L)(1);[07] VERIFIED CORRECTIVE ACTION 6;[08] SET PLIES TO CURE USING HOT BONDER ID:ATS2802 DUE:10/2023 IAW SRM 53-00-50-2R-1 PAR.3 M(1);[09] CURED REPAIR; UNBAGGED REPAIR AND INSTALLED ALL REMOVED INSERTS WITH BMS5-107 CLASS 1 LOT NUMBER AK1KP9159K RESIN; CURED RESIN UNDER HEAT LAMP USING THERMOMETER ID: ATS1776 DUE: 08/2023; WORK PERFORMED IAW SRM 53-00-50-2R-1 PARAGRAPH 3.M.(1) AND N ALSO IAW BOEING DRAWING 147A5810 SHEET 98;

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