Service difficulty report · Panel · Boeing 7377H4

Difficulty date
April 26, 2023
Submitted
June 2, 2023
Operation
Air carrier
Aircraft
N961WN
Make and model
Boeing 7377H4
Aircraft serial
36962
Aircraft time
37,902 hours, 23,158 cycles
Part
Panel
Condition
Cracked
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

RT WING L/E PANEL 621PB FWD CORNER IS CRACKED (MARKED)<[01] IDENTIFIED PANEL 621PB IAW SRM 57-41-01-0I-4 FIGURE 3 TABLE 3 ITEM 1.<BR>DAMAGE FOUND TO BE OUT OF ALLOWABLE LIMITS IAW SRM 57-41-01-1A-1 PARA 4.A(5).<BR>DAMAGE TO BE REPAIRED IAW SRM 51-70-05-2R-6 PER SRM 57-41-01-2R-1 TABLE 202 PARA 4.E\<BR>REMOVED 2EA BACKUP PLATES TO FACILITATE REPAIR IAW SRM 51-40-02-0G-0 PARA 4.E<BR>REMOVED ENTIRE ALUMINUM FOIL PLY TO FACILITATE REPAIR IAW SRM 51-70-05-2R-6 PARA 4.B-D.<BR>REMOVED DAMAGE; AND CLEANED REPAIR AREA IAW SRM 51-70-05-2R-6 PARA 4.A-D.<BR>VALIDATED APPLICABILITY OF SRM 51-70-05-2R-6.[04] FABRICATED REPAIR PLIES OUT OF BMS 5-129 TY2 GR05 LOT:1525915-2; BMS 8-79 CL3 ST1581 LOT#1518153-1; AND BMS 8-79 CL3 ST120 LOT#1523846-1. INSTALLED REPAIR PLIES; VACUUM BAGGED; LEAK CHECK GOOD USING VACUUM GAUGE ID:ATS2441 DUE:08/23 AND SET TO CURE USING HOT BONDER ID:NCX000526 DUE:11/23 IAW SRM 51-70-05-2R-6 PARA 4.E-G.;[09] FABRICATED AND INSTALLED ALUMINUM FOIL ON INNER SURFACE USING BMS 8-289 TYPE 0/250 LOT# 1511321-1 AND BMS 5-128 LOT# 1521411-1 ADHESIVE. IAW SRM 51-70-14-2R-3 PARA 4. A (3) - (5). <BR><BR>INSTALLED VACUUM BAG AND LEAK CHECKED GOOD USING VACUUM GAUGE ID: E11543 CAL DUE: 09/2023; THEN CURED WITH HEAT LAMP MONITORED WITH THERMOMETER ID: ATS1174 CAL DUE: 04/2024. IAW SRM 51-70-14-2R-3 PARA 4. A (11) (A) - (G) AND (I) - (K)

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