Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
September 17, 2023
Submitted
October 16, 2023
Operation
Air carrier
Aircraft
N448WN
Make and model
Boeing 7377H4
Aircraft serial
33721
Aircraft time
64,386 hours, 38,370 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

CRACK STRINGER 19L LOC BTW BS500C TO BS500D AT FWD CARGO COMPARTMENT 2023-569781<[01] TOOL USED: ULTRASONIC THICKNESS GAGE; P/N: 45MG; S/N: 221860711; DUE DATE: 07-NOV-23;[02] TOOL USED: EDDY CURRENT EQUIPMENT; P/N: NORTEC 600D; S/N: 220273012; DUE DATE: 17-DEC-23;[03] REPAIRED STRINGER 19L LOCATED BTW STA 500C TO STA500D AT FWD CARGO COMPARTMENT IAW B737-700 SRM 53-00-03-2R-1 REPAIR 1. SEE INDIVIDUAL SIGN OFF BELOW.;[04] REPAIRED STRINGER 19L LOCATED BTW STA 500C TO STA500D AT FWD CARGO COMPARTMENT IAW B737-700 SRM 53-00-03-2R-1 REPAIR 1. SEE INDIVIDUAL SIGN OFF BELOW.

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