Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
September 21, 2023
Submitted
October 23, 2023
Operation
Air carrier
Aircraft
N915WN
Make and model
Boeing 7377H4
Aircraft serial
36888
Aircraft time
50,935 hours, 30,834 cycles
Part
Intercostal
Part number
UNKNOWN
Condition
Corroded
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

MAIN CABIN FWD WET AREA CORROSION AT INTERCOSTAL UPPER SURFACE STA 294.5+11' LBL 12'<[01] REMOVED AND REPLACED INTERCOSTAL AT MAIN CABIN BETWEEN STA 294.5 TO STA 312 LBL 11.6 SRM 51-40-02-0G-0 AND DWG 141A5600;[02] VERIFIED STEP 1

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