Service difficulty report · Stringer · Boeing 7377CT

Difficulty date
October 12, 2022
Submitted
November 17, 2022
Operation
Air carrier
Aircraft
N569WN
Make and model
Boeing 7377CT
Aircraft serial
33656
Aircraft time
66,340 hours, 34,395 cycles
Part
Stringer
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

STRINGER 7L IS CRACKED AT BS 296 / [01] VERIFY THE APPLICABILITY OF SRM 53-00-03-2R-1 REPAIR 1;[02] CRACK AT STRINGER 7 L BS 296 FOUND TO BE OUT OF LIMITS IAW SRM 53-00-03-2R-1 REPAIR 1;[03] CUT AND REMOVED THE DAMAGED PART OF STRINGER 7L FROM BS 277+10 TO BS 300 IAW SRM 53-00-03-2R-1 REPAIR 1;[04] UPDATED STEPS 2 ; 3 AND 4;[05] HFEC INSPECTED CUTOUT AREA IAW 737 NDTM PART 6 51-00-00 PROCEDURE 23. NO CRACKS NOTED. EQUIP USED: NORTEC 600 ID: ATS2353 CAL DUE: 01/23;[06] VERIFIED CORRECTIVE ACTION #3;[07] RECEIVED REPLACEMENT STRINGER PART FROM OSS HFAB53-STS-011 WITH PO#888209 ANODIZED BAC632 WITH ORDER # W72532 LOCATED AND DRILLED IAW SRM 53-00-03-2R-1 REPAIR 1 OK TO PRIME;[08] LOCATED AND DRILLED STRINGER SPLICE MADE FROM ITEM#7531708 IAW SRM 53-00-03-2R-1 REPAIR 1 OK TO TREAT AND PRIME ALL REPAIR PARTS AND CUTOUT STRUCTURE;[12] INSTALLED REPLACEMENT STRINGER AND STRINGER SPLICE AT BS 296 STR 7L IAW SRM 53-00-03-2R-1 REPAIR 1 AND DWG# 141A8180 REV-C

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