Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
March 12, 2023
Submitted
April 11, 2023
Operation
Air carrier
Aircraft
N290WN
Make and model
Boeing 7377H4
Aircraft serial
36632
Aircraft time
51,201 hours, 30,730 cycles
Part
Intercostal
Condition
Cracked
Location
Zn 200 Fus Top
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

CABIN FLOOR STRUCTURE INTERCOSTAL CRACKED BETWEEN STA 380-400 AND RBL 39<[01] REMOVED AND REPLACED NEW INTERCOSTAL AT MAIN CABIN STA 380-400 RBL 39' AS PER SRM 51-40-02 AND DWG 143A5400;[02] VERIFIED STEP 1;[03] TASK C/W;[04] VERIFIED STEP 1

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