Service difficulty report · Panel · Boeing 7377H4

Difficulty date
November 22, 2021
Submitted
December 27, 2021
Operation
Air carrier
Aircraft
N455WN
Make and model
Boeing 7377H4
Aircraft serial
32462
Aircraft time
58,698 hours, 34,771 cycles
Part
Panel
Part number
621LB
Condition
Pulled
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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 621LB HAS SEVERAL PULLED FASTENER HOLES. DAMAGE AT SEVERAL FASTENER HOLES EXCEED ALLOWABLE DAMAGE LIMITS IAW SRM 57-41-01-1A-1 PARAGRAPH 4.A(5). DAMAGE IS PER SRM 51-70-05-2R-6 AS DIRECTED BY SRM 57-41-01-2R-1. REMOVED 2 EACH BACKPLATES TO FACILITATE REPAIR IAW SRM 51-40-02-0G-0 PARAGRAPH 4.E. INSTALLED FOIL, CHECKED FOR LEAKS; CURED FOIL REPAIR. TRIMMED; CLEANED; AND STARTED REFINISHING EXTERIOR SURFACE IAW SRM 51-70-14-2R-3 PARA 4A(3-5 & 11) AND SRM 51-70-05-2R-6 PARA 4I. PASSED CONDUTIVTY TEST IAW AMM 51-21-71-370-801 PARA 3D(2-4 & 7). REFINISHED PANEL 621LB OUTER SURFACE IAW SRM 51-70-05-2R-6 PAR.4I. INSTALLED 2 BACK PLATES PER SRM 51-40-02-0G-0 PAR.4B AND DRAWING 116A9110 ID 2 FRAME 1.

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