Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
August 19, 2022
Submitted
September 27, 2022
Operation
Air carrier
Aircraft
N489WN
Make and model
Boeing 7377H4
Aircraft serial
33855
Aircraft time
57,460 hours, 34,246 cycles
Part
Intercostal
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

CRACKED INTERCOSTAL AT STA 312+5 & STA 312+11; WL 208; RBL 31. / [01] NO ALLOWABLE LIMITS FOUND ON SRM REPLACEMENT OF THE PART IS APPLICABLE I.A.W SRM 51-10-02-0G-0 PAR.9.C;[02] REMOVED INTERCOSTAL LOCATED BS312-BS328 RBL31 WL208 I.A.W SRM 51-40-02-0G-0;[03] LOCATED AND DRILLED INTERCOSTAL LOCATED BS312-BS328 RBL31 WL208 I.A.W SRM 51-40-05-0G-0 AND BOEING DWG 141A5400 OK TO INSTALL;[04] INSPECTED ACTION 1-3; VERIFIED MEASUREMENT TABLE. OK TO INSTALL;[05] INSTALLED INTERCOSTAL LOCATED BS312-BS328 RBL31 WL208 I.A.W SRM 51-40-02-0G-0 AND BOEING DWG 141A5400 COMPLETED REMOVED AND REPLACED TASK;[06] INSPECTED ACTION 5;[07] INSPECTION COMPLETE

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