Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
November 8, 2022
Submitted
December 1, 2022
Operation
Air carrier
Aircraft
N954WN
Make and model
Boeing 7377H4
Aircraft serial
36669
Aircraft time
38,324 hours, 23,332 cycles
Part
Stringer
Condition
Cracked
Location
Bs 540 S26r
Stage of operation
IN
How discovered
V
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

CRACK ON FWD CARGO BAY END OF STRINGER 26R, AT BS 540. SRM 53-30-03-0I-1 IDENT 1 & SRM 53-00-03-2R-1 REPAIR 1 ARE APPLICABLE TO ACFT. CUT AND REMOVED THE DAMAGE PART OF STRINGER BS 500D+11.5 TO BS 540 IAW SRM 53-00-03-2R-1, REPAIR 1. NEW STRINGER SECTION HEAT TREATED AND DYE PENETRANT INSPECTED. HFEC INSPECTED REPAIR AREA IAW NDTM PART 6, 51-00-00, PROCEDURE 23. NO CRACKS NOTED. FABRICATED -7 REPLACEMENT STRINGER SECTION AND -1 HAT SECTION SPLICE/ TREATED IAW SRM 53-00-03-2R-1, REPAIR 1. PRIMED REPAIR PARTS AND REWORKED AREAS IAW SRM 53-00-03-2R-1, REPAIR 1, AND SOPM 20-41-02. INSTALLED THE STRINGER AND REPAIR PARTS IAW SRM 51-40-02 AND SRM 53-00-03-2R-1 REPAIR 1.

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