Service difficulty report · Panel · Boeing 7377H4

Difficulty date
March 29, 2022
Submitted
May 3, 2022
Operation
Air carrier
Aircraft
N424WN
Make and model
Boeing 7377H4
Aircraft serial
29828
Aircraft time
66,349 hours, 39,132 cycles
Part
Panel
Condition
Cracked
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

RT WING L/E PANEL 621VB HAS EVIDENCE OF CRACKS AROUND 3EA FASTENER HOLES AS MARKED. 124-006 / [01] PERFOMED NDT VISUAL AND TAP TEST INSPECTION ON PANEL #621VB AND FOUND NO WATER; OIL; FUEL; OR UNWANTED MATERIAL AS PER B737 NDTM 51-05-01;[02] PREPARED PANEL #621VB AT DAMAGED AREA FOR REPAIR AS PER B737 SRM 51-70-04-2R-9 PARAGRAPH 4.C;[03] VERIFIED 1-2. OK TO INSTALL REPAIR.;[04] REPAIRED PANEL #621VB AT DAMAGED AREA AS PER B737 SRM 51-70-04-2R-9 PARAGRAPH 4.C AND SRM 51-70-04-2R-0 PARAGRAPH L.7. MATERIALS USED RESIN P/O#1753794 FABRC P/O#1690463;[05] VERIFIED 4.;[06] APPLIED TOPCOAT IAW B 737-700 AMM 51-21-73-370-804.;[07] (AMENDING STEP 6) APPLIED TOPCOAT ON REPAIRED AREA PANEL 621VB IAW B 737-700 AMM 51-21-73-370-804.;[08] (FINAL) PREPARED PANEL #621VB AT DAMAGED AREA FOR REPAIR AS PER B737 SRM 51-70-04-2R-9 PARAGRAPH 4.C. REPAIRED PANEL #621VB AT DAMAGED AREA AS PER B737 SRM 51-70-04-2R-9 PARAGRAPH 4.C AND SRM 51-70-04-2R-0 PARAGRAPH L.7. MATERIALS USED RESIN P/O#1753794 FABRC P/O#1690463.;[09] VERIFIED STEPS 7 AND 8..

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