Service difficulty report · Spar · Boeing 747446

Difficulty date
March 29, 2025
Submitted
March 29, 2025
Operation
Air carrier
Aircraft
N744CK
Make and model
Boeing 747446
Aircraft serial
26353
Aircraft time
121,366 hours, 22,115 cycles
System (JASC)
5711 · Wing Spar
Part
Spar
Condition
Cracked
Location
Zone 600 Le
Stage of operation
IN
How discovered
U
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

DURING ULTRASOUND INSPECTION, CRACK INDICATION NOTED AT LOWER FASTENER HOLE ON RIGHT WING LEADING EDGE UPPER CHORD AT ILES STA 664.