Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
June 15, 2023
Submitted
July 17, 2023
Operation
Air carrier
Aircraft
N291WN
Make and model
Boeing 7377H4
Aircraft serial
32539
Aircraft time
52,450 hours, 31,398 cycles
Part
Intercostal
Part number
UNKNOWN
Condition
Corroded
Location
Zn 100 Fus Lower
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

MAIN CABIN FWD WET AREA CORROSION AT INTERCOSTAL UPPER SURFACE STA 294.5+7' LBL 11'<[01] REMOVED AND REPLACED INTERCOSTAL AT MAIN CABIN FWD WET AREA STA 294.5+7' LBL 11' AS PER SRM 51-40-02-0G-0 & DWG 141A5600 & 141A5690.;[02] VERIFIED INSTALLATION OF INTERCOSTAL AT STA 294.5

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