Service difficulty report · Skin · Boeing 737436

Difficulty date
April 11, 2022
Submitted
May 18, 2022
Operation
General aviation
Filed by
EE4Y151M
Cooperativa Autogestionaria de Servicios Aeroindus
Aircraft
N407YK
Make and model
Boeing 737436
Aircraft serial
25844
Aircraft time
58,996 hours, 38,658 cycles
Part
Skin
Part number
65C25204
Condition
Corroded
Location
Zone 600
Component
Wing · Boeing
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING STRUCTURAL INSPECTION IT WAS FOUND AT RH WING UPPER SKIN EXTERNAL SURFACE CORRODED AT SEVERAL PLACES, BETWEEN FRONT SPAR AND STR 13 AND BETWEEN WBL 77 AND WBL 133. THE DAMAGED AREAS WERE REPAIRED IAW ASGS EO # 2022-0406 REV IR AND SUPPORTED BY FAA FORM 8110-3.