Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
July 5, 2021
Submitted
August 4, 2021
Operation
Air carrier
Aircraft
N752SW
Make and model
Boeing 7377H4
Aircraft serial
29804
Aircraft time
74,046 hours, 43,386 cycles
Part
Stringer
Condition
Cracked
Location
Bs540 S27r
Stage of operation
IN
How discovered
V
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 27R LOCATED BS540 FWD CARGO COMPARTMENT ; 2021-319737 / [01] TOOL USED PN: 45MG; SN: 130064101; DUE DATE: 11 MAR 22.; [02] TOOL USED: P/N: NORTEC 600D; S/N: 200048001; DUE DATE: 24-FEB-22; [03] TOOL USED: TEMPERATURE CONTROLLER P/N P3015GOES00000 S/N 112031023 DUE DATE: 22-JAN-22; [04] REPAIRED STRINGER 27R LOCATED BS540 FWD CARGO COMPARTMENT IAW B737-700 SRM 53-00-03-2R-1 REPAIR 1; MATERIAL USED : STRINGER SECTION 7075/0.056/T0 PO# 2021 127971 ; CHANNEL(1E/A);ANGLE (2E/A) 7075/0.063/T0; PO# 2021 120486 STRINGER SECTION;CHANNEL AND REPAIR ANGLES (2EA) MATERIAL 7075-T0/0.056*/0.063* HEAT TREATED AND CONVERTED FROM 7075-T0 TO CONDITION T6 IAW BAC5602 TABLE IV PAGE 22 AND TABLE X PAGE 33. TOOL USED: TEMPERATURE CONTROLLER P/N P3015GOES00000 S/N 112031023 DUE DATE: 22-JAN-22; [05] TASK CARD COMPLETED. RII

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