Service difficulty report · Panel · Boeing 7377H4

Difficulty date
April 4, 2023
Submitted
May 18, 2023
Operation
Air carrier
Aircraft
N958WN
Make and model
Boeing 7377H4
Aircraft serial
36673
Aircraft time
38,993 hours, 23,664 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 621CB FWD O/B CORNER IS CRACKED<OUT OF ALLOWABLE LIMITS IAW SRM 57-41-01-1A-1 PARA 4.A(5).REMOVED INNER SURFACE DAMAGED PLIES AND CLEANED REPAIR AREA FABRICATED REPAIR PLIES FROM BMS 5-129 TY2 GR05 LOT#1521552-3; BMS 8-79 CL3 ST120 LOT#1520138-1; AND BMS 8-79 CL3 ST1581 LOT#1513773-1. INSTALLED REPAIR PLIES; VACUUM BAGGED; LEAK CHECK GOOD USING VACUUM GAUGE ID:ATS2798 DUE:10/23 ;FABRICATED FOIL REPAIR PLY FROM BMS 8-289 LOT#1511321-1 AND INSTALLED FOIL PLY USING BMS 5-128 LOT#1521411-1; VACUUM BAGGED; LEAK CHECK GOOD USING VACUUM GAUGE ID:E11543 DUE:09/23 AND CURED FOIL UNDER HEAT LAMP USING THERMOMETER ID:ATS2209 DUE:10/23. UNBAGGED FOIL AND TRIMMED EXCESS MATERIAL IAW SRM 51-70-14-2R-3 PARA 4.A(3;4); (5(A)) AND (11(A-L)).<BR>INSTALLED 2EA BACKUP PLATES IAW SRM 51-40-02-0G-0 PARA 4.A-C AND BDWG 116A9110 SHEET 31.<BR><BR>PREPARED DAMAGED SURFACE AND INSTALLED ALUMINUM STRIP USING BMS 5-109 LOT#1522019-1; APPLIED PRESSURE AND CURED UNDER HEAT LAMP USING THERMOMETER ID:ATS2209 DUE:10/23 IAW SRM 57-41-01-2R-6 PARA 4.F-M.;[10] REFINISHED PANEL'S TOOLSIDE IAW SRM 51-70-05-2R-6 PARA 4.I.;[

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