Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
December 12, 2023
Submitted
January 15, 2024
Operation
Air carrier
Aircraft
N919WN
Make and model
Boeing 7377H4
Aircraft serial
36625
Aircraft time
50,919 hours, 30,525 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 ON STRINGER 26R LOCATED BS540 FWD CARGO COMPARTMENT 2023-758413<[01] TOOL USED: EDDY CURRENT EQUIPMENT; P/N: NORTEC600D; S/N: 210138503; CAL DUE DATE: 21-JUL-24;[02] TOOLS 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] PERFORMED PERMANENT REPAIR STRINGER 26R LOCATED BTW BS500D TO BS540 IAW SRM B737-700 53-00-03-2R-1 REPAIR 1. FIG 206 MATERIAL USED STRINGER SECTION 7075-0 0.045 P.O:2023 196095 CONVERTED FROM 7075-T0 TO CONDITION 7075-T6; CHANNEL MATERIAL BAC1493-209 P.O:2023 233857 AND ANGLE 2E/A MATERIAL BAC1493-547 P.O:2021 147271. SEE INDIVIDUAL SIGN OFF BELOW;[04] PERFORMED PERMANENT REPAIR STRINGER 26R LOCATED BTW BS500D TO BS540 IAW SRM B737-700 53-00-03-2R-1 REPAIR 1. FIG 206 MATERIAL USED STRINGER SECTION 7075-0 0.045 P.O:2023 196095 CONVERTED FROM 7075-T0 TO CONDITION 7075-T6; CHANNEL MATERIAL BAC1493-209 P.O:2023 233857 AND ANGLE 2E/A MATERIAL BAC1493-547 P.O:2021 147271. SEE INDIVIDUAL SIGN OFF BELOW<BR>AS RII

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