Service difficulty report · Stiffener · Boeing 747412

Difficulty date
April 19, 2022
Submitted
April 20, 2022
Operation
Air carrier
Aircraft
N703CK
Make and model
Boeing 747412
Aircraft serial
24226
Aircraft time
105,894 hours, 19,573 cycles
System (JASC)
5711 · Wing Spar
Part
Stiffener
Condition
Corroded
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

FWD SPAR VERTICAL STIFFENER SHOWS EVIDENCE OF CORROSION AT OLES 1560