Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
December 19, 2023
Submitted
January 22, 2024
Operation
Air carrier
Aircraft
N457WN
Make and model
Boeing 7377H4
Aircraft serial
33856
Aircraft time
65,535 hours, 39,332 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 25R LOCATED BS540 FWD CARGO COMPARTMENT 2023-766648<[01] TOOL USED UT EQUIPMENT P/N: 45MG; S/N: 130061901; CAL DUE DATE: 09-JUN-24;[02] TOOL USED: TEMPERATURE CONTROLLER P/N P3015GOES00000 S/N 142811020 DUE DATE: 25-JAN-24. TEMPERATURE CONTROLLER P/N P3015GOES00000 S/N 142811019 DUE DATE: 25-JAN-24.;[03] TOOL USED: EDDY CURRENT FLAW DETECTOR P/N: NORTEC 600D; S/N: 220272712; DUE DATE: 28-NOV-24;[04] REPAIRED STRINGER 25R LOC. BTW BS500C TO BS540 FWD CARGO COMPARTMENT I.A.W B737-700 SRM 53-00-03-2R-1 REPAIR 1. THIS REPAIR IS CATEGORY A. NOT FURTHER ACTIONS OR INSPECTION REQUIRED. SEE INDIVIDUAL SIGNOFFS BELOW.;[05] X4;[06] REPAIRED STRINGER 25R LOC. BTW BS500C TO BS540 FWD CARGO COMPARTMENT I.A.W B737-700 SRM 53-00-03-2R-1 REPAIR 1. THIS REPAIR IS CATEGORY A. NOT FURTHER ACTIONS OR INSPECTION REQUIRED. SEE INDIVIDUAL SIGNOFFS BELOW. AS RII

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