Service difficulty report · Stiffener · Boeing 747409F

Difficulty date
March 10, 2025
Submitted
March 14, 2025
Operation
Air carrier
Aircraft
N439GT
Make and model
Boeing 747409F
Aircraft serial
30767
Aircraft time
95,858 hours, 17,546 cycles
Part
Stiffener
Part number
65B0794236
Condition
Cracked
Location
Zone 100
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

DURNG HFEC INSPECTION AT BETWEEN RH STA 320 - 300, WL 130 NOSE WHEEL WELL STIFFENER PER SB 747-53A2465 FOUND CRACK APPROX 1.7" AS MARKED.(<P>STIFFENER REMOVED AND REPLACED AS PER SRM 51-40-02 REV.103 & SB 747-53A2465. NO FURTHER DEFECTS NOTED.</P>)