Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
May 1, 2025
Submitted
May 23, 2025
Operation
Air carrier
Aircraft
N440LV
Make and model
Boeing 7377H4
Aircraft serial
29835
Aircraft time
72,273 hours, 42,996 cycles
Part
Intercostal
Condition
Cracked
Location
Zone 200
Stage of operation
IN
How discovered
V
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

CRACK ON INTERCOSTAL LOCATED BS 540 BTW BL 0 TO RBL 24.75 WL 208.1 AT PASSENGER CABIN 2025-296066 <[01]. REMOVED INTERCOSTAL LOCATED BS 540 BTW BL 0 TO RBL 24.75 WL 208.1 AT PASSENGER CABIN DUE TO NO FOUND ALLOWABLE DAMAGE ON B737-700 SRM 53-30-51-1A-1 ALLOWABLE DAMAGE 1. AND PERFORMED VISUAL INSPECTION ON AREA AND NO FOUND ADDITIONAL DAMAGE. MEASURE OF CRACK IS L=0.914 INCH TOOL USED DIGITAL CALIPER P/N: 500-752-20 S/N: B21014901 DUE DATE: 30/MAR/26 REPLACED INTERCOSTAL IAW B737-700 SRM 51-40-02; SRM 51-10-02 ITEM 9 AND DWG 143A0060 SHEET: 36 REV:A.; [02] COMPLETED JOB.

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