Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
March 2, 2022
Submitted
March 31, 2022
Operation
Air carrier
Aircraft
N763SW
Make and model
Boeing 7377H4
Aircraft serial
27877
Aircraft time
74,817 hours, 44,183 cycles
Part
Stringer
Condition
Cracked
Location
Fuselage
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 FWD CARGO BAY STRINGER AT BS 540 R/H STRINGER 26. / [01] EVALUATED CRACK ON FCB STR 26 R/H BS 536 ; STRINGER DAMAGE FOUND TO BE OUT LIMITS IAW SRM 53-00-03-1A-1 FIG 103;[08] RECEIVED NEW STRINGER SECTION ITEM: HFAB53-STR-011 LOT: 1484419-1 PO/N: 859066; HAT SECTION PO/N: 859067 ITEM: HFAB53-HS-011 LOT: 1484336-1 . LOCATED AND DRILLED NEW STRINGER SECTION AND HAT SECTION IAW SRM 53-00-03-2R-1;[09] RECEIVED NEW STRINGER SECTION ITEM: HFAB53-STR-011 LOT: 1484419-1 PO/N: 859066; HAT SECTION PO/N: 859067 ITEM: HFAB53-HS-011 LOT: 1484336-1 . LOCATED AND DRILLED NEW STRINGER SECTION AND HAT SECTION IAW SRM 53-00-03-2R-1;[10] ACCOMPLISHED HFEC INSPECTION OF CUT EDGE IAW NDTM D6-37239 PART 6; 51-00-00 PROC 23; NO CRACKS FOUND ATS2353 N600;[11] OK TO TREAT AND PRIME REPIAR PARTS AND REPAIR AREA;[12] VERIFIED STEPS 9 AND 11.;[13] APPLIED CHEMICAL CONVERSION COATING AND PRIMER ON REPAIR PARTS IAW SRM 53-00-03-2R-1 PAR. 4 STEPS I -J . REQUES OK TO INSTALL.;[14] VERIFIED CORRECTIVE ACTION 13 AND STEP 1 PARTIAL.;[15] INSTALLED STRINGER SECTION AND HAT SECTION IAW SRM 53-00-03-2R-1 4 STEP K.;[16] INSTALLED STRINGER 26R SECTION AT BS 500D+10 TO BS 540 AND HAT SECTION AT BS500D+10 IAW SRM 53-00-03-2R-1 4 STEP K.

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