Service difficulty report · Panel · Boeing 7377H4

Difficulty date
April 4, 2022
Submitted
May 2, 2022
Operation
Air carrier
Aircraft
N7731A
Make and model
Boeing 7377H4
Aircraft serial
32677
Aircraft time
50,119 hours, 25,184 cycles
Part
Panel
Condition
Cracked
Location
Fuselage
Stage of operation
TX
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

FOUND PANEL 194E WITH 11 EACH FASTENER HOLES WITH STRESS CRACKS AND/OR ELONGATED HOLES (MARKED) / [01] MEASUREMENTS;[02] CLEANED AND PREPARED PANEL FOR REPAIR; PERFORMED DRY OUT; FOUND NO WATER AS PER B737 SRM 51-70-05-2R-8;[03] VERIFIED STEPS 1 AND 2;[04] OK TO INSTALL REPAIR;[05] REPAIRED ALL FASTENERS HOLES ON LOWER WING TO BODY FAIRING PANEL #194E AS PER B737 SRM 51-70-05-2R-8 ; MATERIALS USED PO# 1759850 AND PO#1759636;[06] PERFORMED TAP TEST ON REPAIRED AREA; FOUND NO DELAMINATION AS PER B737 NDT 51-05-01 SECTION 5;[07] LOCATED ; OPENED AND COUNTERSINKED FASTENER HOLES AT BODY FAIRING PANEL #194E AS PER B737-7 SRM 51-40-02.;[08] VERIFIED STEPS 5; 6 AND 7;[09] OK TO TOP COAT PANEL 194E;[10] APPLIED TOPCOAT ON PANEL 194E REF B 737 AMM 51-21-73-370-803;[11] VERIFIED STEP 11

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