Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
May 31, 2023
Submitted
July 5, 2023
Operation
Air carrier
Aircraft
N962WN
Make and model
Boeing 7377H4
Aircraft serial
36963
Aircraft time
38,452 hours, 23,554 cycles
Part
Intercostal
Part number
UNKNOWN
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

CRACKED INTERCOSTAL AT FWD CABIN BS344+9 RBL12 WL208.<[01] CRACKED INTERCOSTAL AT FWD. CABIN BS344+9 RBL12 WL208 WITH NEXT DIMENSION L=0.600' TOOL USED CALIPER ID: ATS2739; S/N: A22004232; DATE: 11/2022; DUE:11/2023 P/N 141A5410-24; VERIFIED APPLICABILITY OF SRM 53-10-51-0L-2 FOR IDENTIFICATION AND SRM 53-10-51-1A-1 FOUND TO BE OUT LIMITS; IT WILL BE REPAIRABLE BY REPLACEMENT I.A.W SRM 51-10-02-0G PAR 9C.;[02] REMOVED INTERCOSTAL AT FWD CABIN BS344+9 RBL12 WL208 I.A.W SRM 51-40-02-0G-0.;[03] LOCATED AND DRILLED NEW INTERCOSTAL P/N 141A5410-24 I.A.W SRM 51-40-05-0G-0. AND DWG 141A5400. AND OK TO INSTALL.;[04] VERIFIED CORRECTIVE ACTION 3 'LOCATED AND DRILLED NEW INTERCOSTAL P/N 141A5410-24 I.A.W SRM 51-40-05-0G-0. AND DWG 141A5400.'<BR>OK TO INSTALL NOT GIVEN DUE TO END OF SHIFT.;[05] REQUEST OK TO INSTALL PART;[06] OK TO INSTALL PART;[07] INSTALLED INTERCOSTAL AT FLOOR STRUCTURE BS 344- BS 360 RBL 12 WL 208 PER SRM 51-40-02-0G-0 AND DWG 141A5400;[08] VERIFIED CORRECTIVE ACTION #7;[09] UPDATE MEASUREMENTS;[10] VERIFIED CORRECTIVE ACTION 8 AND MEASUREMENT TABLE

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