Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
June 30, 2021
Submitted
August 2, 2021
Operation
Air carrier
Aircraft
N419WN
Make and model
Boeing 7377H4
Aircraft serial
29824
Aircraft time
64,912 hours, 38,308 cycles
Part
Stringer
Condition
Cracked
Location
Bs 540 S26l
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 26L LOCATED BS 540 FWD CARGO COMPARTMENT ; 2021-295485 / [01] TOOL USED: CALIPER P/N 500-197-30; S/N A 18234369; DUE DATE 19-AUG-21.; [02] TOOL USED: P/N: NORTEC 600D; S/N: 200048001; DUE DATE: 24-FEB-22; [03] TOOL USED: P/N: NORTEC 600D; S/N: 200048001; DUE DATE: 24-FEB-22; [04] TOOL USED: UT EQUIPMENT P/N: 45MG; S/N: 130060401; DUE DATE: 22/APR/22 REPAIRED STRINGER 23L LOCATED BTW BS 500D +10 TO BS 540 FWD CARGO COMPARTMENT IAW B737-700 SRM 53-00-03-2R-1 REPAIR 1 AND DWG 143A1215 SHEET 1 REV. D. THIS REPAIR IS CAT A NOT FURTHER ACTION OR INSPECTION REQUIRED. MATERIAL USED ALUMINUM SHEET 7075-T0 0.036 P.O. 2021 131796; ALUMINUM SHEET CLAD 7075-T0 0.040 P.O. 2021 11884;EXTRUSION BAC1493-249 P.O. 2021147833 EXTRUSION 2021 135314

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