Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
July 10, 2025
Submitted
August 7, 2025
Operation
Air carrier
Aircraft
N912WN
Make and model
Boeing 7377H4
Aircraft serial
36621
Aircraft time
57,027 hours, 34,448 cycles
Part
Intercostal
Condition
Cracked
Location
Zone 100
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

CRACKED INTERCOSTAL ATTACH ANGLE AT FCB BS440 LBL25 WL155. REMOVED AND REPLACED ANGLE AT FCB BS440 LBL 25 WL 155<BR>IAW SRM 51-40-02 AND DWG 143A7505 REV:-.

More about the Boeing 737-7H4