SDR SWAA2022041985211

Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date: March 17, 2022
Submitted: April 19, 2022
Operation: Air carrier
Aircraft: N472WN
Make and model: Boeing 7377H4
Aircraft serial: 33831
Aircraft time: 58,559 hours, 34,804 cycles
System (JASC): 5310 · Fuselage Main, Structure
Part: Intercostal
Condition: Cracked
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 B.S. 277-294.5; R.B.L. 1; W.L. 208.1. / [01] LOCATED AND DRILLED NEW INTERCOSTAL AT B.S 277 - 294.5 ; RBL 1 WL 208.1 IAW SRM 51-40-05 AND DWG# 141A5410 ; OK TO INSTALL;[02] VERIFIED CORRECTIVE ACTION 1.<BR><BR>OK TO INSTALL NEW PART.;[03] REMOVED AND REPLACED INTERCOSTAL AT B.S 277 - 294.5 ; RBL 1 WL 208.1 IAW SRM 51-40-02 AND DWG # 141A5400;[04] RII INSPECTED ACTION 3;[05] INSPECTION COMPLETE

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