Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
June 9, 2023
Submitted
July 12, 2023
Operation
Air carrier
Aircraft
N963WN
Make and model
Boeing 7377H4
Aircraft serial
36676
Aircraft time
38,123 hours, 23,431 cycles
Part
Stringer
Part number
UNKNOWN
Condition
Cracked
Location
Zn 100 Fus Lower
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 END AT AREA AFT OF FWD CARGO BAY BS535 S-25R WL156. ACCOMPLISHED CUT-OUT AND REMOVAL OF DAMAGE IAW SRM 53-00-03-2R-1 REPAIR 1 PART 4.A-B;[03] REQUEST FOR NDI HFEC INSPECTION ON REPAIR AREA IAW SRM 53-00-03-2R-1 REPAIR 1 PART 4.C. HFEC INSPECTED TRIMMED EDGE OF DAMAGE CUTOUT PER 737NDT PART 6 51-00-00 PROCEDURE 23. NO CRACKS FOUND. LOCATED & DRILLED ALL PARTS IAW SRM 53-00-03-2R-1 REPAIR 1 & EA 23-153-01891. CHEMICAL TREATED & PRIMED ALL REPAIR & REWORK AREA IAW SRM 51-20-01-0G-0 & SOPM 20-41-02. INSTALLED.

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