Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
March 7, 2021
Submitted
March 31, 2021
Operation
Air carrier
Aircraft
N748SW
Make and model
Boeing 7377H4
Aircraft serial
29800
Aircraft time
73,763 hours, 43,887 cycles
Part
Stringer
Condition
Cracked
Location
Fwd Cargo
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 27L LOCATED BS540 FWD CARGO COMPARTMENT. REPAIRED STRINGER 27L LOC BS540 FWD CARGO COMPARTMENT IAW B737-700 SRM 53-00-03-2R-1 REPAIR 1 PARAGRAPH 4; DWG 143A3230 REV A - SHEET 7 DWG 143A1215 SHEET - REV B; MADE REPAIR PART STRINGER SECTION 1 (1EA) ANGLE (2EA) CHANNEL (1EA) IAW B737-700 SRM 53-00-03-2R-1 MATERIAL USED 7075 TO 0.056';0.063' HEAT TREATMENT REPAIR PARTS CONVERTED FROM 7075 TO CONDITION T6 IAW BAC5602 TOOL USED TEMPERATURE CONTROLLER PN P301560B00000 SN 112031023 DUE DATE 22-JAN-22.

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