Service difficulty report · Panel · Boeing 7377BD

Difficulty date
December 29, 2022
Submitted
January 26, 2023
Operation
Air carrier
Aircraft
N7713A
Make and model
Boeing 7377BD
Aircraft serial
33919
Aircraft time
57,380 hours, 30,141 cycles
Part
Panel
Condition
Cracked
Location
Lt 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

LT WING L/E PANEL 521FB I/B FWD CORNER HAS CRACK<[01] IDENTIFIED PANEL 521FB IAW SRM 57-41-01-0I-4 FIGURE 5 ITEM [1] DAMAGE TO THE PANEL IS BEYOND ALLOWABLE LIMITS IAW SRM 57-41-01-1A-1 PARAGRAPH 4.A.(2).(A) AND WILL BE REPAIRED IAW SRM 51-70-05-2R-6 PER SRM 57-41-01-2R-1 PARAGRAPH 2.F REMOVED THE PANEL'S TWO BACKUP PLATES IAW SRM 51-40-02-0G-0 PARAGRAPH 4.E.[04] FABRICATED REPAIR PLIES FROM BMS5-129 GRADE 05 LOT NUMBER 1510001-1; BMS8-79 STYLE 1581 LOT NUMBER 1512711-2 AND BMS8-79 STYLE 120 LOT NUMBER 1512722-1; INSTALLED PLIES ONTO REPAIR AREA; VACUUM BAGGED REPAIR; VERIFIED SATISFACTORY 5X5 AND SET PLIES TO CURE USING HOTBONDER ID: NCX000523 DUE: 06/2023 WORK ACCOMPLISHED IAW SRM 51-70-05-2R-6 PARAGRAPH 4 STEPS E-G;[09] REMOVED AREA OF FINISH ON TOOLSIDE AND CLEANED IAW AMM 51-21-99-300-802 PAR. 3.C.(1)(A)-(C)<BR><BR>FABRICATED REPAIR FOIL USING BMS8-289 LOT# 1507307-1 AND INSTALLED USING BMS5-128 (EA-956) ADHESIVE LOT# JH2FAL7046; SET UP VACUUM BAG SYSTEM WITH LEAK CHECKED GOOD USING GAUGE ID: ATS2796 CAL/DUE: 10/2023 AND CURED UNDER HEATLAMP MONITORED BY THERMOMETER ID: ATS2209 CAL/DUE: 10/2023; REMOVED VACUUM BAG SYSTEM AND CLEANED REPAIR EDGES IAW SRM 51-70-14-2R-3 PAR. 4.A.(3)-(5)(A)(1) -(11)(A)(B)(D)-(G)(I)-(L);

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