Service difficulty report · Panel · Boeing 7377H4

Difficulty date
July 14, 2022
Submitted
August 10, 2022
Operation
Air carrier
Aircraft
N951WN
Make and model
Boeing 7377H4
Aircraft serial
36665
Aircraft time
39,132 hours, 23,683 cycles
Part
Panel
Condition
Debonded
Location
R/H 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

R/W L/E PANEL 621YB CONER METAL STRIP DISBONDED / [01] IDENTIFIED PANEL 621YB MATERIAL IAW SRM 57-41-01-0I-4; FIGURE 2; SHEET1; TABLE 2; ITEM [1]. <BR><BR>CLEANED PANEL AND REMOVED FINISH TO EVALUATE DAMAGE IAW AMM 51-21-11-150-815 PARA. 17. C. AND D <BR><BR>REMOVED (2 EA.) BACKUP PLATES TO FACILITATE EVALUATION IAW SRM 51-40-02-0G-0 PARA 4.E. FIG 8. <BR><BR>REMOVED BONDED ALUMINUM FOIL TO FACILITATE EVALUATION IAW SRM 51-70-14-2R-3 PARA 4.A.(1).-(2). <BR><BR>VISUAL INSPECTION FOUND NO SIGNS OF METAL STRIP DISBOND IAW SRM 51-10-02-0G-0 PARA 4. (5).. <BR><BR>INNER SURFACE FOIL TO BE REPLACED IAW 51-70-14-2R-3.<BR><BR>PANEL TO BE REFINISHED IAW AMM 51-21-99-300-802;[02] UPDATED MEASUREMENTS.;[03] CORRECTION FOR LINE 1; 'INNER SURFACE FOIL TO BE REPLACED IAW 51-70-14-2R-3' SHOULD READ 'INNER SURFACE FOIL TO BE REPLACED IAW SRM 51-70-14-2R-3.';[04] VERIFIED CORRECTIVE ACTIONS 1-3;[05] UPON FURTHER INVESTIGATION FOUND CRACK FROM FASTENER HOLE TO EDGE OF PANEL AT FWD; I/B CORNER THAT IS OUT OF ALLOWABLE LIMITS IAW SRM 57-41-01-1A-1 PARA 4. A. (5) (A). <BR><BR>REPAIR TO BE COMPLETED IAW SRM 51-70-05-2R-6 AS GIVEN IN SRM 57-41-01-2R-1 PARA 4. B. (2) AND TABLE 202.;[06] VALIDATED REPAIR OF SRM 51-70-05-2R-6 AS GIVEN IN SRM 57-41-01-2R-1 PARA 4. B. (2) AND TABLE 202;

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