Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
October 3, 2021
Submitted
October 26, 2021
Operation
Air carrier
Aircraft
N232WN
Make and model
Boeing 7377H4
Aircraft serial
32500
Aircraft time
53,002 hours, 31,465 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 26R, BS 540, WL 153. REMOVED FASTENERS FROM STRINGER IAW SRM 51-40-02-0G-0. EVALUATED CRACK AND FOUND OUT OF LIMITS IAW SRM 53-00-03-1A-1, PARA 4A(2)(A)1. FABRICATED, LOCATED & DRILLED A NEW STRINGER SECTION AND SPLICE IAW SRM 53-00-03-2R-1, FIG 205. APPLIED CHEMICAL CONVERSION COATING ON REPAIR PARTS IAW SRM 53-00-03-2R-1, PARA 4.I. APPLIED PRIMER ON REPAIR PARTS IAW SRM 53-00-03-2R-1. PERFORMED VISUAL INSPECTION, NO MORE DAMAGE FOUND IAW SRM 53-00-03-2R-1, REPAIR 1 STEP 4B(1). HFEC INSPECTED CUT EDGES IAW NDTM PART 6 51-00-00 PROCEDURE 23; NO CRACKS NOTED. INSTALLED THE NEW STRINGER SECTION AND SPLICE IAW SRM 53-00-03-2R-1, REPAIR 1, SOPM 20-50-19 AND DWG 143A3230 REV A.

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