Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
March 16, 2020
Submitted
April 14, 2020
Operation
Air carrier
Aircraft
N427WN
Make and model
Boeing 7377H4
Aircraft serial
29831
Aircraft time
61,697 hours, 36,249 cycles
Part
Intercostal
Part number
141A8131
Condition
Corroded
Location
Fuselage
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

***CORROSION*** INTERCOSTAL WEB AT BS 295; STRINGER 23L IS CORRODED ON UPPER SURFACE. WL175 / REMOVED & REPLACED NEW INTERCOSTAL 141A8131-17 FROM BS312 TO BS 294 LH IAW SRM 51-40-02-0G-0 & DWG 141A8131; PO NUMBER 786833-SWA; CORROSION OUT OF LIMITS PER SRM 53-00-04-1A-1

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