Service difficulty report · Spar Web · Boeing 747409

Difficulty date
November 20, 2025
Submitted
November 21, 2025
Operation
Air carrier
Aircraft
N249BA
Make and model
Boeing 747409
Aircraft serial
24309
Aircraft time
88,550 hours, 10,833 cycles
System (JASC)
5711 · Wing Spar
Part
Spar Web
Condition
Cracked
Location
Zone 500
Stage of operation
IN
How discovered
E
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

CRACK ON LT WING FRONT SPAR WEB NEAR FSSI 660, DURING PERFORMING BOEING SB 747-57A2357. REMOVED THE AFFECTED FASTENER IAW SRM 51-40-02-0G-0, REV 62. PERFORMED NDT INSPECTION, REFER TO JOB CARD ATTACHING SHEET 0485601. ACCOMPLISH EI T2025A57M-2406, REV 3. CONDITION CHECK NORMAL.