Service difficulty report · Plate · Boeing 7377H4

Difficulty date
June 11, 2022
Submitted
July 14, 2022
Operation
Air carrier
Aircraft
N488WN
Make and model
Boeing 7377H4
Aircraft serial
33853
Aircraft time
59,468 hours, 35,169 cycles
Part
Plate
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

WING PANEL 621SB HAS CRACKED I/B BACKUP PLATE / [01] UPON WORKING OF REPAIRS TO COMPOSITE PANEL; BACKUP PLATE WAS FOUND TO BE CRACKED AND MODIFIED AND WILL REQUIRE NEW BACKUP PLATE FABRICATED DUE TO NO AVAILABILITY; IAW DRAWING 116A9110-6 SHEET 2; AND DRAWING 116A9103-3. <BR><BR>FABRICATED NEW BACKUP PLATE USING RAW STOCK 6061-T6 0.050' BARE LOT# 1477767-1 IAW DRAWING 116A9103-3 SHEET 2 AND PL SHEET 2. OK TO SEND TO OSS FOR ANODIZATION PROCESS.;[02] VERIFIED CORRECTIVE ACTION 1;[03] NEW FABRICATED BACKUP PLATE WAS SENT TO OSS FOR ANODIZING PROCEDURE. REFERENCE P.O. 872019-SWA FOR DETAILS. <BR><BR>OK TO PRIME AND INSTALL.;[04] CORRECTION FOR LINE 3; CHANGING 'OK TO PRIME AND INSTALL' TO 'OK TO PRIME'.;[05] VERIFIED CORRECTIVE ACTION 3 AND 4 OK TO PRIME;[06] PRIMED BACKUP PLATE USING BMS 10-11; LOT# 23684105/436 IAW DWG 116A9103-3.<BR><BR>INSTALLATION OF PART TO BE ACCOMPLISHED ON TTG8Q00CYKLL.<BR><BR>JOB COMPLETE.;[07] VERIFIED CORRECTIVE ACTION 6 AND MEASUREMENT TABLE JOB COMPLETE

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