Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
June 9, 2021
Submitted
July 15, 2021
Operation
Air carrier
Aircraft
N489WN
Make and model
Boeing 7377H4
Aircraft serial
33855
Aircraft time
54,253 hours, 32,244 cycles
Part
Stringer
Condition
Cracked
Location
Fuselage
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

CRACKED STRINGER AT AREA AFT OF FCB BS540 S-26R WL152. MARKED ; / [01] REMOVED DAMAGED S-26R SECTION AT BS 500D+10'-540 AND PERFORMED GVI NO ADDITIONAL DAMAGED FOUND IAW SRM 53-00-03-2R-1.; [02] VERIFIED DAMAGE REMOVAL AND PERFORMED GVI NO ADDITIONAL DAMAGED FOUND IAW SRM 53-00-03-2R-1.; [03] HFEC INSPECTED CUT END OF STRINGER PER NDTM PART 6; 51-00-00 PROCEDURE 23. NO CRACKS NOTED.<BR>CAL ID: ATS1465 S/N: 60004150296;05] VERIFIED; [06] LOCATED; DRILLED; TRIMMED; DEBURRED; APPLIED CHEMICAL CONVERION COATING AND PRIMERED NEW STRINGER SECTION BS500D+10 TO BS540 STR26R WL152 IAW SRM 53-00-03-2R-1.; [12] INSTALLED REPAIR PARTS S26R BS 500D+6' - 540 IAW SRM 53-00-03-2R-1 AND DWG 143A1215 ;143A3230.; [13] VERIFIED INSTALLATION OF STRINGER REPAIR PARTS AT S-26R; BS 500D+6' - 540; PER SRM 53-00-03-2R-1; DWG 143A1215; AND DWG 143A3230; [14] VERIFIED ALL WORK ACCOMPLISHED THIS TASK

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